Revert "Issue #2135445 by dww, Sam152, jessebeach, Mile23, Kristen Pol, Wim Leers, larowlan: Toolbar displays Manage tab even if the user is not permitted to see it"

This reverts commit 211c6641f8.

core/modules/settings_tray/tests/src/FunctionalJavascript/SettingsTrayBlockFormTest.php

@@ -30,7 +30,6 @@ class SettingsTrayBlockFormTest extends SettingsTrayTestBase {
 
     $user = $this->createUser([
       'administer blocks',
-      'access administration pages',
       'access contextual links',
       'access toolbar',
       'administer nodes',

core/modules/toolbar/tests/src/Functional/ToolbarAdminMenuTest.php

@@ -394,23 +394,6 @@ class ToolbarAdminMenuTest extends BrowserTestBase {
     $this->assertRaw('title="External URL & escaped"');
   }
 
-  /**
-   * Tests that there is no Manage tab in the Toolbar for authenticated users.
-   *
-   * The authorized user should not have a Manage tab simply with the 'access
-   * toolbar' permission. They need 'access administration pages' for that.
-   */
-  public function testEmptyMenuTray() {
-    // Log out the admin user because we're testing restricted access.
-    $this->drupalLogout();
-    $this->drupalLogin($this->drupalCreateUser(['access toolbar']));
-    $this->assertResponse(200);
-    // @todo The toolbar div itself still has the id "toolbar-administration".
-    // @see https://www.drupal.org/project/drupal/issues/1044090
-    $this->assertSession()->elementExists('css', 'div[id=toolbar-administration]');
-    $this->assertSession()->elementNotExists('css', 'a[id=toolbar-item-administration]');
-  }
-
   /**
    * Get the hash value from the admin menu subtrees route path.
    *

core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarIntegrationTest.php

@@ -22,7 +22,6 @@ class ToolbarIntegrationTest extends WebDriverTestBase {
   public function testToolbarToggling() {
     $admin_user = $this->drupalCreateUser([
       'access toolbar',
-      'access administration pages',
       'administer site configuration',
       'access content overview',
     ]);

core/modules/toolbar/toolbar.module

@@ -159,18 +159,6 @@ function toolbar_toolbar() {
     '#weight' => -20,
   ];
 
-  // If the current user cannot access administration pages, we can save a large
-  // amount of unnecessary work by ending here. It'd be better to actually know
-  // if the admin menu tree is empty for them, but trying to load that tree only
-  // happens in a #pre_render callback, and at that point, it's too late. The
-  // entire toolbar is rendered with the 'user.permissions' #cache context, so
-  // we can safely do this here and it'll still be cached correctly.
-  // @see toolbar_prerender_toolbar_administration_tray()
-  // @see toolbar_page_top()
-  if (!\Drupal::currentUser()->hasPermission('access administration pages')) {
-    return $items;
-  }
-
   // To conserve bandwidth, we only include the top-level links in the HTML.
   // The subtrees are fetched through a JSONP script that is generated at the
   // toolbar_subtrees route. We provide the JavaScript requesting that JSONP