diff --git a/core/modules/system/src/Plugin/Block/SystemMenuBlock.php b/core/modules/system/src/Plugin/Block/SystemMenuBlock.php
index 24db858650..e9e1b33d2a 100644
--- a/core/modules/system/src/Plugin/Block/SystemMenuBlock.php
+++ b/core/modules/system/src/Plugin/Block/SystemMenuBlock.php
@@ -5,7 +5,6 @@
 use Drupal\Core\Block\BlockBase;
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Menu\MenuActiveTrailInterface;
 use Drupal\Core\Menu\MenuLinkTreeInterface;
 use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
@@ -30,13 +29,6 @@ class SystemMenuBlock extends BlockBase implements ContainerFactoryPluginInterfa
   protected $menuTree;
 
   /**
-   * The active menu trail service.
-   *
-   * @var \Drupal\Core\Menu\MenuActiveTrailInterface
-   */
-  protected $menuActiveTrail;
-
-  /**
    * Constructs a new SystemMenuBlock.
    *
    * @param array $configuration
@@ -47,13 +39,10 @@ class SystemMenuBlock extends BlockBase implements ContainerFactoryPluginInterfa
    *   The plugin implementation definition.
    * @param \Drupal\Core\Menu\MenuLinkTreeInterface $menu_tree
    *   The menu tree service.
-   * @param \Drupal\Core\Menu\MenuActiveTrailInterface $menu_active_trail
-   *   The active menu trail service.
    */
-  public function __construct(array $configuration, $plugin_id, $plugin_definition, MenuLinkTreeInterface $menu_tree, MenuActiveTrailInterface $menu_active_trail) {
+  public function __construct(array $configuration, $plugin_id, $plugin_definition, MenuLinkTreeInterface $menu_tree) {
     parent::__construct($configuration, $plugin_id, $plugin_definition);
     $this->menuTree = $menu_tree;
-    $this->menuActiveTrail = $menu_active_trail;
   }
 
   /**
@@ -64,8 +53,7 @@ public static function create(ContainerInterface $container, array $configuratio
       $configuration,
       $plugin_id,
       $plugin_definition,
-      $container->get('menu.link_tree'),
-      $container->get('menu.active_trail')
+      $container->get('menu.link_tree')
     );
   }
 
diff --git a/sites/default/default.services.yml b/sites/default/default.services.yml
old mode 100644
new mode 100755