diff --git a/core/includes/bootstrap.inc b/core/includes/bootstrap.inc
index 3a54a491f55..6abe08a571b 100644
--- a/core/includes/bootstrap.inc
+++ b/core/includes/bootstrap.inc
@@ -2549,43 +2549,32 @@ function language_multilingual() {
 /**
  * Returns a list of configured languages.
  *
- * @param $only_enabled
- *   (optional) Whether to return only enabled languages.
- *
  * @return
  *   An associative array of languages, keyed by the language code, ordered by
  *   weight ascending and name ascending.
  */
-function language_list($only_enabled = FALSE) {
+function language_list() {
   $languages = &drupal_static(__FUNCTION__);
   // Initialize master language list.
   if (!isset($languages)) {
-    // Initialize local language list caches.
-    $languages = array('all' => array(), 'enabled' => array());
-
-    // Fill in master language list based on current configuration.
     $default = language_default();
     if (language_multilingual() || module_exists('language')) {
       // Use language module configuration if available.
-      $languages['all'] = db_query('SELECT * FROM {language} ORDER BY weight ASC, name ASC')->fetchAllAssoc('langcode');
+      $languages = db_query('SELECT * FROM {language} ORDER BY weight ASC, name ASC')->fetchAllAssoc('langcode');
     }
     else {
       // No language module, so use the default language only.
-      $languages['all'][$default->langcode] = $default;
+      $languages = array($default->langcode => $default);
     }
 
     // Initialize default property so callers have an easy reference and can
-    // save the same object without data loss. Also fill in the filtered list
-    // of enabled languages only.
-    foreach ($languages['all'] as $langcode => $language) {
-      $languages['all'][$langcode]->default = ($langcode == $default->langcode);
-      if ($language->enabled) {
-        $languages['enabled'][$langcode] = $languages['all'][$langcode];
-      }
+    // save the same object without data loss.
+    foreach ($languages as $langcode => $language) {
+      $languages[$langcode]->default = ($langcode == $default->langcode);
     }
   }
 
-  return $only_enabled ? $languages['enabled'] : $languages['all'];
+  return $languages;
 }
 
 /**
@@ -2636,7 +2625,6 @@ function language_default() {
     'langcode' => 'en',
     'name' => 'English',
     'direction' => 0,
-    'enabled' => 1,
     'weight' => 0,
   ));
   $default->default = TRUE;
diff --git a/core/includes/language.inc b/core/includes/language.inc
index 01d418a318f..8e5f1ac6912 100644
--- a/core/includes/language.inc
+++ b/core/includes/language.inc
@@ -342,8 +342,7 @@ function language_negotiation_method_invoke($method_id, $method = NULL) {
   if (!isset($results[$method_id])) {
     global $user;
 
-    // Get the enabled languages only.
-    $languages = language_list(TRUE);
+    $languages = language_list();
 
     if (!isset($method)) {
       $negotiation_info = language_negotiation_info();
diff --git a/core/includes/update.inc b/core/includes/update.inc
index 2715fdf6b3c..e5c62d83882 100644
--- a/core/includes/update.inc
+++ b/core/includes/update.inc
@@ -184,20 +184,42 @@ function update_prepare_d8_language() {
     db_drop_field('languages', 'prefix');
     db_drop_field('languages', 'domain');
     db_drop_field('languages', 'native');
+    db_drop_field('languages', 'enabled');
+
+    // Update language count.
+    variable_set('language_count', db_query('SELECT COUNT(language) FROM {languages}')->fetchField());
 
     // Rename the languages table to language.
     db_rename_table('languages', 'language');
 
-    // Finally install/enable the language module. We need to use the update
-    // specific version of this function to ensure schema conflicts don't happen
-    // due to our updated data.
+    // Install/enable the language module. We need to use the update specific
+    // version of this function to ensure schema conflicts don't happen due to
+    // our updated data.
     $modules = array('language');
     update_module_add_to_system($modules);
     update_module_enable($modules);
 
     // Rename 'language' column to 'langcode'.
-    require_once DRUPAL_ROOT . '/core/modules/language/language.install';
-    language_update_8000();
+    db_drop_primary_key('language');
+    $langcode_spec = array(
+      'type' => 'varchar',
+      'length' => 12,
+      'not null' => TRUE,
+      'default' => '',
+      'description' => "Language code, e.g. 'de' or 'en-US'.",
+    );
+    db_change_field('language', 'language', 'langcode', $langcode_spec, array('primary key' => array('langcode')));
+
+    // Update the 'language_default' system variable with the langcode change.
+    $language_default = variable_get('language_default');
+    if (!empty($language_default)) {
+      if (isset($language_default->language)) {
+        $language_default->langcode = $language_default->language;
+        unset($language_default->language);
+      }
+      unset($language_default->enabled);
+      variable_set('language_default', $language_default);
+    }
   }
 }
 
diff --git a/core/modules/language/language.admin.inc b/core/modules/language/language.admin.inc
index e341094782d..b05a1306e96 100644
--- a/core/modules/language/language.admin.inc
+++ b/core/modules/language/language.admin.inc
@@ -19,7 +19,6 @@ function language_admin_overview_form($form, &$form_state) {
     '#tree' => TRUE,
     '#header' => array(
       t('Name'),
-      t('Enabled'),
       t('Default'),
       t('Weight'),
       t('Operations'),
@@ -32,13 +31,6 @@ function language_admin_overview_form($form, &$form_state) {
     $form['languages'][$langcode]['name'] = array(
       '#markup' => check_plain($language->name),
     );
-    $form['languages'][$langcode]['enabled'] = array(
-      '#type' => 'checkbox',
-      '#title' => t('Enable @title', array('@title' => $language->name)),
-      '#title_display' => 'invisible',
-      '#default_value' => (int) $language->enabled,
-      '#disabled' => $langcode == $default->langcode,
-    );
     $form['languages'][$langcode]['default'] = array(
       '#type' => 'radio',
       '#parents' => array('site_default'),
@@ -154,21 +146,6 @@ function language_admin_overview_form_submit($form, &$form_state) {
   foreach ($languages as $langcode => $language) {
     $language->default = ($form_state['values']['site_default'] == $langcode);
     $language->weight = $form_state['values']['languages'][$langcode]['weight'];
-
-    if ($language->default || $old_default->langcode == $langcode) {
-      // Automatically enable the default language and the language which was
-      // default previously (because we will not get the value from that
-      // disabled checkbox).
-      $form_state['values']['languages'][$langcode]['enabled'] = 1;
-    }
-    $language->enabled = (int) !empty($form_state['values']['languages'][$langcode]['enabled']);
-
-    // If the interface language has been disabled make sure that the form
-    // redirect includes the new default language as a query parameter.
-    if ($language->enabled == FALSE && $langcode == $GLOBALS['language_interface']->langcode) {
-      $form_state['redirect'] = array('admin/config/regional/language', array('language' => $languages[$form_state['values']['site_default']]));
-    }
-
     language_save($language);
   }
 
@@ -483,7 +460,6 @@ function language_negotiation_configure_form_table(&$form, $type) {
     '#language_negotiation_info' => array(),
     '#show_operations' => FALSE,
     'weight' => array('#tree' => TRUE),
-    'enabled' => array('#tree' => TRUE),
   );
 
   $negotiation_info = $form['#language_negotiation_info'];
@@ -694,8 +670,7 @@ function language_negotiation_configure_url_form($form, &$form_state) {
     ),
   );
 
-  // Get the enabled languages only.
-  $languages = language_list(TRUE);
+  $languages = language_list();
   $prefixes = language_negotiation_url_prefixes();
   $domains = language_negotiation_url_domains();
   foreach ($languages as $langcode => $language) {
@@ -731,8 +706,7 @@ function language_negotiation_configure_url_form($form, &$form_state) {
  * the prefix and domain are only blank for the default.
  */
 function language_negotiation_configure_url_form_validate($form, &$form_state) {
-  // Get the enabled languages only.
-  $languages = language_list(TRUE);
+  $languages = language_list();
 
   // Count repeated values for uniqueness check.
   $count = array_count_values($form_state['values']['prefix']);
diff --git a/core/modules/language/language.install b/core/modules/language/language.install
index 92f61a08eae..5a962fa0c06 100644
--- a/core/modules/language/language.install
+++ b/core/modules/language/language.install
@@ -76,12 +76,6 @@ function language_schema() {
         'default' => 0,
         'description' => 'Direction of language (Left-to-Right = 0, Right-to-Left = 1).',
       ),
-      'enabled' => array(
-        'type' => 'int',
-        'not null' => TRUE,
-        'default' => 0,
-        'description' => 'Enabled flag (1 = Enabled, 0 = Disabled).',
-      ),
       'weight' => array(
         'type' => 'int',
         'not null' => TRUE,
@@ -96,31 +90,3 @@ function language_schema() {
   );
   return $schema;
 }
-
-/**
- * Rename {language}.language to {language}.langcode.
- *
- * @see update_prepare_d8_language()
- */
-function language_update_8000() {
-  // Rename language column to langcode and set it again as the primary key.
-  if (db_field_exists('language', 'language')) {
-    db_drop_primary_key('language');
-    $langcode_spec = array(
-      'type' => 'varchar',
-      'length' => 12,
-      'not null' => TRUE,
-      'default' => '',
-      'description' => "Language code, e.g. 'de' or 'en-US'.",
-    );
-    db_change_field('language', 'language', 'langcode', $langcode_spec, array('primary key' => array('langcode')));
-  }
-
-  // Update the 'language_default' system variable, if configured.
-  $language_default = variable_get('language_default');
-  if (!empty($language_default) && isset($language_default->language)) {
-    $language_default->langcode = $language_default->language;
-    unset($language_default->language);
-    variable_set('language_default', $language_default);
-  }
-}
diff --git a/core/modules/language/language.module b/core/modules/language/language.module
index 34f1a59dd2e..63b3743e963 100644
--- a/core/modules/language/language.module
+++ b/core/modules/language/language.module
@@ -165,10 +165,6 @@ function language_save($language) {
     $language->direction = isset($predefined[$language->langcode][2]) ? $predefined[$language->langcode][2] : LANGUAGE_LTR;
   }
 
-  // Set to enabled for the default language and unless specified otherwise.
-  if (!empty($language->default) || !isset($language->enabled)) {
-    $language->enabled = TRUE;
-  }
   // Let other modules modify $language before saved.
   module_invoke_all('language_presave', $language);
 
@@ -192,7 +188,7 @@ function language_save($language) {
   }
 
   // Update language count based on enabled language count.
-  variable_set('language_count', db_query('SELECT COUNT(langcode) FROM {language} WHERE enabled = 1')->fetchField());
+  variable_set('language_count', db_query('SELECT COUNT(langcode) FROM {language}')->fetchField());
 
   // Kill the static cache in language_list().
   drupal_static_reset('language_list');
@@ -220,9 +216,7 @@ function language_delete($langcode) {
       ->condition('langcode', $language->langcode)
       ->execute();
 
-    if ($language->enabled) {
-      variable_set('language_count', variable_get('language_count', 1) - 1);
-    }
+    variable_set('language_count', variable_get('language_count', 1) - 1);
 
     drupal_static_reset('language_list');
 
diff --git a/core/modules/language/language.negotiation.inc b/core/modules/language/language.negotiation.inc
index 56deb3ec726..6269e8b203e 100644
--- a/core/modules/language/language.negotiation.inc
+++ b/core/modules/language/language.negotiation.inc
@@ -293,8 +293,7 @@ function language_url_fallback($language = NULL, $language_type = LANGUAGE_TYPE_
  * Translation links may be provided by other modules.
  */
 function language_switcher_url($type, $path) {
-  // Get the enabled languages only.
-  $languages = language_list(TRUE);
+  $languages = language_list();
   $links = array();
 
   foreach ($languages as $language) {
@@ -316,8 +315,7 @@ function language_switcher_session($type, $path) {
   $param = variable_get('language_negotiation_session_param', 'language');
   $language_query = isset($_SESSION[$param]) ? $_SESSION[$param] : $GLOBALS[$type]->langcode;
 
-  // Get the enabled languages only.
-  $languages = language_list(TRUE);
+  $languages = language_list();
   $links = array();
 
   $query = $_GET;
@@ -353,8 +351,7 @@ function language_url_rewrite_url(&$path, &$options) {
   $languages = &$drupal_static_fast['languages'];
 
   if (!isset($languages)) {
-    // Get the enabled languages only.
-    $languages = language_list(TRUE);
+    $languages = language_list();
     $languages = array_flip(array_keys($languages));
   }
 
@@ -439,8 +436,7 @@ function language_url_rewrite_session(&$path, &$options) {
   if (!isset($query_rewrite)) {
     global $user;
     if (!$user->uid) {
-      // Get the enabled languages only.
-      $languages = language_list(TRUE);
+      $languages = language_list();
       $query_param = check_plain(variable_get('language_negotiation_session_param', 'language'));
       $query_value = isset($_GET[$query_param]) ? check_plain($_GET[$query_param]) : NULL;
       $query_rewrite = isset($languages[$query_value]) && language_negotiation_method_enabled(LANGUAGE_NEGOTIATION_SESSION);
diff --git a/core/modules/language/language.test b/core/modules/language/language.test
index 31951418f27..f0000e1e015 100644
--- a/core/modules/language/language.test
+++ b/core/modules/language/language.test
@@ -74,20 +74,6 @@ class LanguageListTest extends DrupalWebTestCase {
     $this->assertEqual($this->getUrl(), url('admin/config/regional/language', array('absolute' => TRUE)), t('Correct page redirection.'));
     $this->assertText(t('The default language cannot be deleted.'), t('Failed to delete the default language.'));
 
-    // Check if we can disable a language.
-    $edit = array(
-      'languages[en][enabled]' => FALSE,
-    );
-    $this->drupalPost(NULL, $edit, t('Save configuration'));
-    $this->assertNoFieldChecked('edit-languages-en-enabled', t('Language disabled.'));
-
-    // Set disabled language to be the default and ensure it is re-enabled.
-    $edit = array(
-      'site_default' => 'en',
-    );
-    $this->drupalPost(NULL, $edit, t('Save configuration'));
-    $this->assertFieldChecked('edit-languages-en-enabled', t('Default language re-enabled.'));
-
     // Ensure 'edit' link works.
     $this->clickLink(t('edit'));
     $this->assertTitle(t('Edit language | Drupal'), t('Page title is "Edit language".'));
@@ -100,11 +86,16 @@ class LanguageListTest extends DrupalWebTestCase {
     $this->assertRaw($name, t('The language has been updated.'));
     $this->assertEqual($this->getUrl(), url('admin/config/regional/language', array('absolute' => TRUE)), t('Correct page redirection.'));
 
+    // Change back the default language.
+    $edit = array(
+      'site_default' => 'en',
+    );
+    $this->drupalPost(NULL, $edit, t('Save configuration'));
     // Ensure 'delete' link works.
     $this->drupalGet('admin/config/regional/language');
     $this->clickLink(t('delete'));
     $this->assertText(t('Are you sure you want to delete the language'), t('"delete" link is correct.'));
-    // Delete an enabled language.
+    // Delete a language.
     $this->drupalGet('admin/config/regional/language/delete/' . $langcode);
     // First test the 'cancel' link.
     $this->clickLink(t('Cancel'));
@@ -122,20 +113,13 @@ class LanguageListTest extends DrupalWebTestCase {
     $this->assertResponse(404, t('Language no longer found.'));
     // Make sure the "language_count" variable has been updated correctly.
     drupal_static_reset('language_list');
-    $enabled_languages = language_list(TRUE);
-    $this->assertEqual(variable_get('language_count', 1), count($enabled_languages), t('Language count is correct.'));
-    // Delete a disabled language.
-    // Disable an enabled language.
-    $edit = array(
-      'languages[fr][enabled]' => FALSE,
-    );
-    $this->drupalPost($path, $edit, t('Save configuration'));
-    $this->assertNoFieldChecked('edit-languages-fr-enabled', t('French language disabled.'));
-    // Get the count of enabled languages.
-    drupal_static_reset('language_list');
-    $enabled_languages = language_list(TRUE);
-    // Delete the disabled language.
+    $languages = language_list();
+    $this->assertEqual(variable_get('language_count', 1), count($languages), t('Language count is correct.'));
+    // Delete French.
     $this->drupalPost('admin/config/regional/language/delete/fr', array(), t('Delete'));
+    // Get the count of languages.
+    drupal_static_reset('language_list');
+    $languages = language_list();
     // We need raw here because %language and %langcode will add HTML.
     $t_args = array('%language' => 'French', '%langcode' => 'fr');
     $this->assertRaw(t('The %language (%langcode) language has been removed.', $t_args), t('Disabled language has been removed.'));
@@ -144,7 +128,7 @@ class LanguageListTest extends DrupalWebTestCase {
     $this->drupalGet('admin/config/regional/language/delete/fr');
     $this->assertResponse(404, t('Language no longer found.'));
     // Make sure the "language_count" variable has not changed.
-    $this->assertEqual(variable_get('language_count', 1), count($enabled_languages), t('Language count is correct.'));
+    $this->assertEqual(variable_get('language_count', 1), count($languages), t('Language count is correct.'));
 
     // Ensure we can delete the English language. Right now English is the only
     // language so we must add a new language and make it the default before
@@ -245,7 +229,6 @@ class LanguageDependencyInjectionTest extends DrupalWebTestCase {
       'langcode' => 'fr',
       'name' => 'French',
       'direction' => 0,
-      'enabled' => 1,
       'weight' => 0,
       'default' => TRUE,
     );
diff --git a/core/modules/locale/locale.admin.inc b/core/modules/locale/locale.admin.inc
index d74f71455dc..4a4867c2d80 100644
--- a/core/modules/locale/locale.admin.inc
+++ b/core/modules/locale/locale.admin.inc
@@ -45,9 +45,7 @@ function locale_date_format_language_overview_page() {
     array('data' => t('Operations'), 'colspan' => '2'),
   );
 
-  // Get the enabled languages only.
-  $languages = language_list(TRUE);
-
+  $languages = language_list();
   foreach ($languages as $langcode => $language) {
     $row = array();
     $row[] = $language->name;
diff --git a/core/modules/locale/locale.bulk.inc b/core/modules/locale/locale.bulk.inc
index ed3d3a6990a..8cd4fd18cd1 100644
--- a/core/modules/locale/locale.bulk.inc
+++ b/core/modules/locale/locale.bulk.inc
@@ -12,7 +12,7 @@ include_once DRUPAL_ROOT . '/core/includes/gettext.inc';
  */
 function locale_translate_import_form($form, &$form_state) {
   drupal_static_reset('language_list');
-  $languages = language_list(TRUE);
+  $languages = language_list();
 
   // Initialize a language list to the ones available, including English if we
   // are to translate Drupal to English as well.
@@ -127,7 +127,7 @@ function locale_translate_import_form_submit($form, &$form_state) {
  * Builds form to export Gettext translation files.
  */
 function locale_translate_export_form($form, &$form_state) {
-  $languages = language_list(TRUE);
+  $languages = language_list();
   $language_options = array();
   foreach ($languages as $langcode => $language) {
     if ($langcode != 'en' || locale_translate_english()) {
diff --git a/core/modules/locale/locale.pages.inc b/core/modules/locale/locale.pages.inc
index 74603a9fe39..8f260521bcf 100644
--- a/core/modules/locale/locale.pages.inc
+++ b/core/modules/locale/locale.pages.inc
@@ -156,7 +156,7 @@ function locale_translation_filters() {
 
   // Get all languages, except English
   drupal_static_reset('language_list');
-  $languages = language_list(TRUE);
+  $languages = language_list();
   $language_options = array();
   foreach ($languages as $langcode => $language) {
     if ($langcode != 'en' || locale_translate_english()) {
diff --git a/core/modules/locale/locale.test b/core/modules/locale/locale.test
index bb3c6e777d4..fa78e146860 100644
--- a/core/modules/locale/locale.test
+++ b/core/modules/locale/locale.test
@@ -1930,24 +1930,6 @@ class LocaleUserLanguageFunctionalTest extends DrupalWebTestCase {
       'direction' => '0',
     );
     $this->drupalPost('admin/config/regional/language/add', $edit, t('Add custom language'));
-
-    // Add custom language and disable it.
-    // Code for the language.
-    $langcode_disabled = 'xx-yy';
-    // The English name for the language. This will be translated.
-    $name_disabled = $this->randomName(16);
-    $edit = array(
-      'predefined_langcode' => 'custom',
-      'langcode' => $langcode_disabled,
-      'name' => $name_disabled,
-      'direction' => '0',
-    );
-    $this->drupalPost('admin/config/regional/language/add', $edit, t('Add custom language'));
-    // Disable the language.
-    $edit = array(
-      'languages[' . $langcode_disabled . '][enabled]' => FALSE,
-    );
-    $this->drupalPost('admin/config/regional/language', $edit, t('Save configuration'));
     $this->drupalLogout();
 
     // Login as normal user and edit account settings.
@@ -1958,8 +1940,6 @@ class LocaleUserLanguageFunctionalTest extends DrupalWebTestCase {
     $this->assertText(t('Language'), t('Language selector available.'));
     // Ensure custom language is present.
     $this->assertText($name, t('Language present on form.'));
-    // Ensure disabled language isn't present.
-    $this->assertNoText($name_disabled, t('Disabled language not present on form.'));
     // Switch to our custom language.
     $edit = array(
       'preferred_langcode' => $langcode,
@@ -2289,25 +2269,6 @@ class LocaleContentFunctionalTest extends DrupalWebTestCase {
     );
     $this->drupalPost('admin/config/regional/language/add', $edit, t('Add custom language'));
 
-    // Add disabled custom language.
-    // Code for the language.
-    $langcode_disabled = 'xx-yy';
-    // The English name for the language.
-    $name_disabled = $this->randomName(16);
-    $edit = array(
-      'predefined_langcode' => 'custom',
-      'langcode' => $langcode_disabled,
-      'name' => $name_disabled,
-      'direction' => '0',
-    );
-    $this->drupalPost('admin/config/regional/language/add', $edit, t('Add custom language'));
-    // Disable second custom language.
-    $path = 'admin/config/regional/language';
-    $edit = array(
-      'languages[' . $langcode_disabled . '][enabled]' => FALSE,
-    );
-    $this->drupalPost($path, $edit, t('Save configuration'));
-
     // Set "Basic page" content type to use multilingual support.
     $this->drupalGet('admin/structure/types/manage/page');
     $this->assertText(t('Multilingual support'), t('Multilingual support fieldset present on content type configuration form.'));
@@ -2328,10 +2289,8 @@ class LocaleContentFunctionalTest extends DrupalWebTestCase {
     $this->drupalGet('node/add/page');
     // Verify language select list is present.
     $this->assertFieldByName('langcode', NULL, t('Language select present on add Basic page form.'));
-    // Ensure enabled language appears.
-    $this->assertText($name, t('Enabled language present.'));
-    // Ensure disabled language doesn't appear.
-    $this->assertNoText($name_disabled, t('Disabled language not present.'));
+    // Ensure language appears.
+    $this->assertText($name, t('Language present.'));
 
     // Create "Basic page" content.
     $node_title = $this->randomName();
@@ -2520,7 +2479,7 @@ class LocaleUILanguageNegotiationTest extends DrupalWebTestCase {
     // is for some reason not found when doing translate search. This might
     // be some bug.
     drupal_static_reset('language_list');
-    $languages = language_list(TRUE);
+    $languages = language_list();
     variable_set('language_default', $languages['vi']);
     // First visit this page to make sure our target string is searchable.
     $this->drupalGet('admin/config');
@@ -2780,15 +2739,6 @@ class LocaleUrlRewritingTest extends DrupalWebTestCase {
     $edit['predefined_langcode'] = 'fr';
     $this->drupalPost('admin/config/regional/language/add', $edit, t('Add language'));
 
-    // Install Italian language.
-    $edit = array();
-    $edit['predefined_langcode'] = 'it';
-    $this->drupalPost('admin/config/regional/language/add', $edit, t('Add language'));
-
-    // Disable Italian language.
-    $edit = array('languages[it][enabled]' => FALSE);
-    $this->drupalPost('admin/config/regional/language', $edit, t('Save configuration'));
-
     // Enable URL language detection and selection.
     $edit = array('language_interface[enabled][language-url]' => 1);
     $this->drupalPost('admin/config/regional/language/detection', $edit, t('Save settings'));
@@ -2800,13 +2750,9 @@ class LocaleUrlRewritingTest extends DrupalWebTestCase {
   }
 
   /**
-   * Check that disabled or non-installed languages are not considered.
+   * Check that non-installed languages are not considered.
    */
   function testUrlRewritingEdgeCases() {
-    // Check URL rewriting with a disabled language.
-    $languages = language_list();
-    $this->checkUrl($languages['it'], t('Path language is ignored if language is disabled.'), t('URL language negotiation does not work with disabled languages'));
-
     // Check URL rewriting with a non-installed language.
     $non_existing = language_default();
     $non_existing->langcode = $this->randomName();
diff --git a/core/modules/node/node.admin.inc b/core/modules/node/node.admin.inc
index ac18da785ea..5388a875db1 100644
--- a/core/modules/node/node.admin.inc
+++ b/core/modules/node/node.admin.inc
@@ -106,7 +106,7 @@ function node_filters() {
 
   // Language filter if language support is present.
   if (language_multilingual()) {
-    $languages = language_list(TRUE);
+    $languages = language_list();
     $language_options = array(LANGUAGE_NOT_SPECIFIED => t('- None -'));
     foreach ($languages as $langcode => $language) {
       $language_options[$langcode] = $language->name;
diff --git a/core/modules/node/node.module b/core/modules/node/node.module
index bdd5051f085..c961edda63f 100644
--- a/core/modules/node/node.module
+++ b/core/modules/node/node.module
@@ -2857,7 +2857,7 @@ function node_form_search_form_alter(&$form, $form_state) {
 
     // Languages:
     $language_options = array();
-    foreach (language_list(TRUE) as $langcode => $language) {
+    foreach (language_list() as $langcode => $language) {
       $language_options[$langcode] = $language->name;
     }
     if (count($language_options) > 1) {
diff --git a/core/modules/node/node.pages.inc b/core/modules/node/node.pages.inc
index 4e94b2613de..3ca34e03891 100644
--- a/core/modules/node/node.pages.inc
+++ b/core/modules/node/node.pages.inc
@@ -176,7 +176,7 @@ function node_form($form, &$form_state, $node) {
   $form['#node'] = $node;
 
   if (variable_get('node_type_language_' . $node->type, 0) && module_exists('language')) {
-    $languages = language_list(TRUE);
+    $languages = language_list();
     $language_options = array();
     foreach ($languages as $langcode => $language) {
       $language_options[$langcode] = $language->name;
diff --git a/core/modules/openid/openid.module b/core/modules/openid/openid.module
index 9ba3e4b278b..8b404f5880f 100644
--- a/core/modules/openid/openid.module
+++ b/core/modules/openid/openid.module
@@ -263,7 +263,7 @@ function openid_form_user_register_form_alter(&$form, &$form_state) {
         $candidate_langcodes[] = $parts[0] . '-' . $parts[2];
         $candidate_langcodes[] = $parts[0] . '-' . $parts[1] . '-' . $parts[2];
       }
-      $enabled_languages = language_list(TRUE);
+      $enabled_languages = language_list();
       // Iterate over the generated permutations starting with the longest (most
       // specific) strings.
       foreach (array_reverse($candidate_langcodes) as $candidate_langcode) {
diff --git a/core/modules/path/path.admin.inc b/core/modules/path/path.admin.inc
index 24921b8f1f7..9e22cffd318 100644
--- a/core/modules/path/path.admin.inc
+++ b/core/modules/path/path.admin.inc
@@ -145,7 +145,7 @@ function path_admin_form($form, &$form_state, $path = array('source' => '', 'ali
 
   // A hidden value unless language.module is enabled.
   if (module_exists('language')) {
-    $languages = language_list(TRUE);
+    $languages = language_list();
     foreach ($languages as $langcode => $language) {
       $language_options[$langcode] = $language->name;
     }
diff --git a/core/modules/path/path.test b/core/modules/path/path.test
index 4dcd611c550..0066071d0f4 100644
--- a/core/modules/path/path.test
+++ b/core/modules/path/path.test
@@ -532,9 +532,8 @@ class PathMonolingualTestCase extends PathTestCase {
     $edit = array('site_default' => 'fr');
     $this->drupalPost('admin/config/regional/language', $edit, t('Save configuration'));
 
-    // Disable English.
-    $edit = array('languages[en][enabled]' => FALSE);
-    $this->drupalPost('admin/config/regional/language', $edit, t('Save configuration'));
+    // Delete English.
+    $this->drupalPost('admin/config/regional/language/delete/en', array(), t('Delete'));
 
     // Verify that French is the only language.
     $this->assertFalse(language_multilingual(), t('Site is mono-lingual'));
diff --git a/core/modules/search/search.test b/core/modules/search/search.test
index 3fcfb0c1fe9..b6f5ae8e044 100644
--- a/core/modules/search/search.test
+++ b/core/modules/search/search.test
@@ -1986,16 +1986,14 @@ class SearchLanguageTestCase extends SearchWebTestCase {
     $this->drupalPost('search/node', $edit, t('Advanced search'));
     $this->assertFieldByXPath('//input[@name="keys"]', 'language:fr', t('Language filter added to query.'));
 
-    // Change the default language and disable English.
+    // Change the default language and delete English.
     $path = 'admin/config/regional/language';
     $this->drupalGet($path);
     $this->assertFieldChecked('edit-site-default-en', t('English is the default language.'));
     $edit = array('site_default' => 'fr');
     $this->drupalPost(NULL, $edit, t('Save configuration'));
     $this->assertNoFieldChecked('edit-site-default-en', t('Default language updated.'));
-    $edit = array('languages[en][enabled]' => FALSE);
-    $this->drupalPost('admin/config/regional/language', $edit, t('Save configuration'));
-    $this->assertNoFieldChecked('edit-languages-en-enabled', t('Language disabled.'));
+    $this->drupalPost('admin/config/regional/language/delete/en', array(), t('Delete'));
 
     // Check that there are again no languages displayed.
     $this->drupalGet('search/node');
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index 200a3350b53..0976d1b873f 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -3921,17 +3921,15 @@ function system_date_format_save($date_format, $dfid = 0) {
     drupal_write_record('date_formats', $info, $keys);
   }
 
-  // Retrieve an array of language objects for enabled languages.
-  $languages = language_list(TRUE);
+  $languages = language_list();
 
   $locale_format = array();
   $locale_format['type'] = $date_format['type'];
   $locale_format['format'] = $date_format['format'];
 
-  // Check if the suggested language codes are configured and enabled.
+  // Check if the suggested language codes are configured.
   if (!empty($date_format['locales'])) {
     foreach ($date_format['locales'] as $langcode) {
-      // Only proceed if language is enabled.
       if (isset($languages[$langcode])) {
         $is_existing = (bool) db_query_range('SELECT 1 FROM {date_format_locale} WHERE type = :type AND language = :language', 0, 1, array(':type' => $date_format['type'], ':language' => $langcode))->fetchField();
         if (!$is_existing) {
diff --git a/core/modules/translation/translation.module b/core/modules/translation/translation.module
index fa73df58866..d35a6bc4eaa 100644
--- a/core/modules/translation/translation.module
+++ b/core/modules/translation/translation.module
@@ -136,28 +136,6 @@ function translation_form_node_form_alter(&$form, &$form_state) {
   if (translation_supported_type($form['#node']->type)) {
     $node = $form['#node'];
 
-    // Build two lists with the disabled and enabled languages.
-    $languages = language_list();
-    $grouped_languages = array();
-    foreach ($languages as $langcode => $language) {
-      $grouped_languages[(int) $language->enabled][$langcode] = $language;
-    }
-
-    $translator_widget = !empty($grouped_languages[0]) && user_access('translate content');
-    $groups = array(t('Disabled'), t('Enabled'));
-    // Allow translators to enter content in disabled languages. Translators
-    // might need to distinguish between enabled and disabled languages, hence
-    // we divide them in two option groups.
-    if ($translator_widget) {
-      $options = array($groups[1] => array(LANGUAGE_NOT_SPECIFIED => t('- None -')));
-      foreach (array(1, 0) as $status) {
-        $group = $groups[$status];
-        foreach ($grouped_languages[$status] as $langcode => $language) {
-          $options[$group][$langcode] = $language->name;
-        }
-      }
-      $form['langcode']['#options'] = $options;
-    }
     if (!empty($node->translation_source)) {
       // We are creating a translation. Add values and lock language field.
       $form['translation_source'] = array('#type' => 'value', '#value' => $node->translation_source);
@@ -170,13 +148,7 @@ function translation_form_node_form_alter(&$form, &$form_state) {
       unset($form['langcode']['#options'][LANGUAGE_NOT_SPECIFIED]);
       foreach (translation_node_get_translations($node->tnid) as $langcode => $translation) {
         if ($translation->nid != $node->nid) {
-          if ($translator_widget) {
-            $group = $groups[(int)!isset($disabled_languages[$langcode])];
-            unset($form['langcode']['#options'][$group][$langcode]);
-          }
-          else {
-            unset($form['langcode']['#options'][$langcode]);
-          }
+          unset($form['langcode']['#options'][$langcode]);
         }
       }
       // Add translation values and workflow options.
@@ -223,7 +195,7 @@ function translation_node_view($node, $view_mode) {
   // If the site has no translations or is not multilingual we have no content
   // translation links to display.
   if (isset($node->tnid) && language_multilingual() && $translations = translation_node_get_translations($node->tnid)) {
-    $languages = language_list(TRUE);
+    $languages = language_list();
 
     // There might be a language provider enabled defining custom language
     // switch links which need to be taken into account while generating the
@@ -236,8 +208,7 @@ function translation_node_view($node, $view_mode) {
     $links = array();
 
     foreach ($translations as $langcode => $translation) {
-      // Do not show links to the same node, to unpublished translations or to
-      // translations in disabled languages.
+      // Do not show links to the same node or to unpublished translations.
       if ($translation->status && isset($languages[$langcode]) && $langcode != $node->langcode) {
         $language = $languages[$langcode];
         $key = "translation_$langcode";
diff --git a/core/modules/translation/translation.test b/core/modules/translation/translation.test
index c0e158c24c3..d6939a85347 100644
--- a/core/modules/translation/translation.test
+++ b/core/modules/translation/translation.test
@@ -33,11 +33,6 @@ class TranslationTestCase extends DrupalWebTestCase {
     // Add languages.
     $this->addLanguage('en');
     $this->addLanguage('es');
-    $this->addLanguage('it');
-
-    // Disable Italian to test the translation behavior with disabled languages.
-    $edit = array('languages[it][enabled]' => FALSE);
-    $this->drupalPost('admin/config/regional/language', $edit, t('Save configuration'));
 
     // Set "Basic page" content type to use multilingual support with
     // translation.
@@ -126,13 +121,6 @@ class TranslationTestCase extends DrupalWebTestCase {
     $this->drupalPost('node/' . $node_translation->nid . '/edit', $edit, t('Save'));
     $this->assertRaw(t('Basic page %title has been updated.', array('%title' => $node_translation_title)), t('Translated node updated.'));
 
-    // Confirm that disabled languages are an option for translators when
-    // creating nodes.
-    $this->drupalGet('node/add/page');
-    $this->assertFieldByXPath('//select[@name="langcode"]//option', 'it', t('Italian (disabled) is available in language selection.'));
-    $translation_it = $this->createTranslation($node, $this->randomName(), $this->randomName(), 'it');
-    $this->assertRaw($translation_it->body[LANGUAGE_NOT_SPECIFIED][0]['value'], t('Content created in Italian (disabled).'));
-
     // Confirm that language neutral is an option for translators when there are
     // disabled languages.
     $this->drupalGet('node/add/page');
@@ -140,11 +128,10 @@ class TranslationTestCase extends DrupalWebTestCase {
     $node2 = $this->createPage($this->randomName(), $this->randomName(), LANGUAGE_NOT_SPECIFIED);
     $this->assertRaw($node2->body[LANGUAGE_NOT_SPECIFIED][0]['value'], t('Language neutral content created with disabled languages available.'));
 
-    // Leave just one language enabled and check that the translation overview
+    // Leave just one language installed and check that the translation overview
     // page is still accessible.
     $this->drupalLogin($this->admin_user);
-    $edit = array('languages[es][enabled]' => FALSE);
-    $this->drupalPost('admin/config/regional/language', $edit, t('Save configuration'));
+    $this->drupalPost('admin/config/regional/language/delete/es', array(), t('Delete'));
     $this->drupalLogin($this->translator);
     $this->drupalGet('node/' . $node->nid . '/translate');
     $this->assertRaw(t('Translations of %title', array('%title' => $node->title)), t('Translation overview page available with only one language enabled.'));
@@ -154,17 +141,14 @@ class TranslationTestCase extends DrupalWebTestCase {
    * Checks that the language switch links behave properly.
    */
   function testLanguageSwitchLinks() {
-    // Create a Basic page in English and its translations in Spanish and
-    // Italian.
+    // Create a Basic page in English and its translation in Spanish.
     $node = $this->createPage($this->randomName(), $this->randomName(), 'en');
     $translation_es = $this->createTranslation($node, $this->randomName(), $this->randomName(), 'es');
-    $translation_it = $this->createTranslation($node, $this->randomName(), $this->randomName(), 'it');
 
-    // Check that language switch links are correctly shown only for enabled
-    // languages.
+    // Check that language switch links are correctly shown for languages
+    // we have translations for.
     $this->assertLanguageSwitchLinks($node, $translation_es);
     $this->assertLanguageSwitchLinks($translation_es, $node);
-    $this->assertLanguageSwitchLinks($node, $translation_it, FALSE);
 
     // Check that links to the displayed translation appear only in the language
     // switcher block.
@@ -195,10 +179,9 @@ class TranslationTestCase extends DrupalWebTestCase {
    * Tests that the language switcher block alterations work as intended.
    */
   function testLanguageSwitcherBlockIntegration() {
-    // Enable Italian to have three items in the language switcher block.
+    // Add Italian to have three items in the language switcher block.
     $this->drupalLogin($this->admin_user);
-    $edit = array('languages[it][enabled]' => TRUE);
-    $this->drupalPost('admin/config/regional/language', $edit, t('Save configuration'));
+    $this->addLanguage('it');
     $this->resetCaches();
     $this->drupalLogin($this->translator);
 
@@ -286,7 +269,7 @@ class TranslationTestCase extends DrupalWebTestCase {
     // Check to make sure that language has not already been installed.
     $this->drupalGet('admin/config/regional/language');
 
-    if (strpos($this->drupalGetContent(), 'languages[' . $language_code . '][enabled]') === FALSE) {
+    if (strpos($this->drupalGetContent(), 'languages[' . $language_code . ']') === FALSE) {
       // Doesn't have language installed so add it.
       $edit = array();
       $edit['predefined_langcode'] = $language_code;
@@ -301,15 +284,9 @@ class TranslationTestCase extends DrupalWebTestCase {
         $this->assertRaw(t('The language %language has been created and can now be used.', array('%language' => $languages[$language_code]->name)), t('Language has been created.'));
       }
     }
-    elseif ($this->xpath('//input[@type="checkbox" and @name=:name and @checked="checked"]', array(':name' => 'languages[' . $language_code . '][enabled]'))) {
-      // It's installed and enabled. No need to do anything.
-      $this->assertTrue(true, 'Language [' . $language_code . '] already installed and enabled.');
-    }
     else {
-      // It's installed but not enabled. Enable it.
+      // It's installed. No need to do anything.
       $this->assertTrue(true, 'Language [' . $language_code . '] already installed.');
-      $this->drupalPost(NULL, array('languages[' . $language_code . '][enabled]' => TRUE), t('Save configuration'));
-      $this->assertRaw(t('Configuration saved.'), t('Language successfully enabled.'));
     }
   }
 
diff --git a/core/modules/user/user.module b/core/modules/user/user.module
index 545f2bf3c32..639755ba4b7 100644
--- a/core/modules/user/user.module
+++ b/core/modules/user/user.module
@@ -1094,8 +1094,7 @@ function user_account_form(&$form, &$form_state) {
   $form['#validate'][] = 'user_validate_picture';
 
   if (module_exists('language') && language_multilingual()) {
-    // Get list of enabled languages only.
-    $languages = language_list(TRUE);
+    $languages = language_list();
 
     // If the user is being created, we set the user language to the page language.
     $user_preferred_language = $register ? $language_interface : user_preferred_language($account);