reverted:
--- b/core/lib/Drupal/Core/Config/ConfigImporter.php
+++ a/core/lib/Drupal/Core/Config/ConfigImporter.php
@@ -8,7 +8,6 @@
 namespace Drupal\Core\Config;
 
 use Drupal\Core\Config\ConfigEvents;
-use Drupal\Core\Config\Entity\ConfigDependencyManager;
 use Drupal\Core\DependencyInjection\DependencySerialization;
 use Drupal\Core\Lock\LockBackendInterface;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
@@ -335,13 +334,4 @@
     return !$this->lock->lockMayBeAvailable(static::LOCK_ID);
   }
 
-  protected function prioritize() {
-    $dependency_manager = new ConfigDependencyManager();
-    $storage = $this->storageComparer->getSourceStorage();
-    $data = array_filter($storage->readMultiple($storage->listAll()), function($config) {
-      return isset($config['uuid']);
-    });
-    $dependency_manager->setData($data);
-    $sorted_list = $dependency_manager->sortAll();
-  }
 }