Removing unused use statement

src/Controller/Component/CommonComponent.php

@@ -5,7 +5,6 @@ namespace Tools\Controller\Component;
 use Cake\Core\Configure;
 use Cake\Event\Event;
 use Cake\Routing\Router;
-use Cake\Utility\Hash;
 use Shim\Controller\Component\Component;
 use Tools\Utility\Utility;