diff --git a/core/modules/menu_link/lib/Drupal/menu_link/MenuTree.php b/core/modules/menu_link/lib/Drupal/menu_link/MenuTree.php
index ee2754d..455cae6 100644
--- a/core/modules/menu_link/lib/Drupal/menu_link/MenuTree.php
+++ b/core/modules/menu_link/lib/Drupal/menu_link/MenuTree.php
@@ -442,7 +442,6 @@ protected function doBuildTree($menu_name, array $parameters = array()) {
       sort($parameters['expanded']);
     }
     $tree_cid = 'links:' . $menu_name . ':tree-data:' . $language_interface->id . ':' . hash('sha256', serialize($parameters));
-    print_r($tree_cid);
 
     // If we do not have this tree in the static cache, check {cache_menu}.
     if (!isset($this->menuTree[$tree_cid])) {