diff --git a/core/modules/shortcut/shortcut.module b/core/modules/shortcut/shortcut.module
index 9776fb45e91..9f344660397 100644
--- a/core/modules/shortcut/shortcut.module
+++ b/core/modules/shortcut/shortcut.module
@@ -227,6 +227,8 @@ function shortcut_default_set($account = NULL) {
  *
  * @return
  *   TRUE if a shortcut set with that title exists; FALSE otherwise.
+ *
+ * @deprecated in Drupal 8.x, will be removed before Drupal 9.0.
  */
 function shortcut_set_title_exists($title) {
   $sets = ShortcutSet::loadMultiple();
diff --git a/core/modules/shortcut/src/Form/SwitchShortcutSet.php b/core/modules/shortcut/src/Form/SwitchShortcutSet.php
index 897399714f5..0efa824273b 100644
--- a/core/modules/shortcut/src/Form/SwitchShortcutSet.php
+++ b/core/modules/shortcut/src/Form/SwitchShortcutSet.php
@@ -175,10 +175,6 @@ class SwitchShortcutSet extends FormBase {
       if (trim($form_state->getValue('label')) == '') {
         $form_state->setErrorByName('new', $this->t('The new set label is required.'));
       }
-      // Check to prevent a duplicate title.
-      if (shortcut_set_title_exists($form_state->getValue('label'))) {
-        $form_state->setErrorByName('label', $this->t('The shortcut set %name already exists. Choose another name.', array('%name' => $form_state->getValue('label'))));
-      }
     }
   }
 
diff --git a/core/modules/shortcut/src/ShortcutSetForm.php b/core/modules/shortcut/src/ShortcutSetForm.php
index cb5f43fada7..9708aee611d 100644
--- a/core/modules/shortcut/src/ShortcutSetForm.php
+++ b/core/modules/shortcut/src/ShortcutSetForm.php
@@ -48,18 +48,6 @@ class ShortcutSetForm extends EntityForm {
     return $form;
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public function validate(array $form, FormStateInterface $form_state) {
-    parent::validate($form, $form_state);
-    $entity = $this->entity;
-    // Check to prevent a duplicate title.
-    if ($form_state->getValue('label') != $entity->label() && shortcut_set_title_exists($form_state->getValue('label'))) {
-      $form_state->setErrorByName('label', $this->t('The shortcut set %name already exists. Choose another name.', array('%name' => $form_state->getValue('label'))));
-    }
-  }
-
   /**
    * {@inheritdoc}
    */
diff --git a/core/modules/shortcut/src/Tests/ShortcutSetsTest.php b/core/modules/shortcut/src/Tests/ShortcutSetsTest.php
index be6c439dcea..417e91890b6 100644
--- a/core/modules/shortcut/src/Tests/ShortcutSetsTest.php
+++ b/core/modules/shortcut/src/Tests/ShortcutSetsTest.php
@@ -150,18 +150,6 @@ class ShortcutSetsTest extends ShortcutTestBase {
     $this->assertTrue($set->label() == $new_label, 'Shortcut set has been successfully renamed.');
   }
 
-  /**
-   * Tests renaming a shortcut set to the same name as another set.
-   */
-  function testShortcutSetRenameAlreadyExists() {
-    $set = $this->generateShortcutSet($this->randomMachineName());
-    $existing_label = $this->set->label();
-    $this->drupalPostForm('admin/config/user-interface/shortcut/manage/' . $set->id(), array('label' => $existing_label), t('Save'));
-    $this->assertRaw(t('The shortcut set %name already exists. Choose another name.', array('%name' => $existing_label)));
-    $set = ShortcutSet::load($set->id());
-    $this->assertNotEqual($set->label(), $existing_label, format_string('The shortcut set %title cannot be renamed to %new-title because a shortcut set with that title already exists.', array('%title' => $set->label(), '%new-title' => $existing_label)));
-  }
-
   /**
    * Tests unassigning a shortcut set.
    */