diff --git a/core/modules/rest/rest.module b/core/modules/rest/rest.module
index 431ab7b..9100df6 100644
--- a/core/modules/rest/rest.module
+++ b/core/modules/rest/rest.module
@@ -10,16 +10,14 @@
  */
 function rest_permission() {
   $permissions = array();
-  if (Drupal::service()->has('plugin.manager.rest')) {
-    $manager = Drupal::service('plugin.manager.rest');
-    $resources = config('rest.settings')->get('resources');
+  $manager = Drupal::service('plugin.manager.rest');
+  $resources = config('rest.settings')->get('resources');
     if ($resources && $enabled = array_intersect_key($manager->getDefinitions(), $resources)) {
       foreach ($enabled as $key => $resource) {
         $plugin = $manager->getInstance(array('id' => $key));
         $permissions = array_merge($permissions, $plugin->permissions());
       }
     }
-  }
   return $permissions;
 }