[WebProfilerBundle] Remove useless use clause

src/Symfony/Bundle/WebProfilerBundle/WebDebugToolbarListener.php

@@ -13,7 +13,6 @@ namespace Symfony\Bundle\WebProfilerBundle;
 
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
-use Symfony\Bundle\FrameworkBundle\HttpKernel;
 use Symfony\Component\HttpKernel\HttpKernelInterface;
 use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
 use Symfony\Bundle\TwigBundle\TwigEngine;