diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index a6f8093..d719b5a 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -1698,8 +1698,6 @@ function system_page_alter(&$page) {
       $page[$region]['#region'] = $region;
     }
   }
-
-  $schema = \Drupal::entityManager()->getStorage('custom_block')->getSchema();
 }
 
 /**