Applied fixes from StyleCI (#48)

Author: lenybernard

EventListener/AlertifyListener.php

@@ -11,14 +11,12 @@
 
 namespace Troopers\AlertifyBundle\EventListener;
 
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpFoundation\Session\Flash\AutoExpireFlashBag;
 use Symfony\Component\HttpFoundation\Session\Session;
 use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
 use Symfony\Component\HttpKernel\KernelEvents;
-use Symfony\Component\EventDispatcher\EventSubscriberInterface;
-use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 use Troopers\AlertifyBundle\Handler\AlertifySessionHandler;
 
 /**
@@ -72,7 +70,7 @@ protected function injectAlertify(Response $response, Request $request)
     public static function getSubscribedEvents()
     {
         return [
-            KernelEvents::RESPONSE => array('onKernelResponse'),
+            KernelEvents::RESPONSE => ['onKernelResponse'],
         ];
     }
 }