Removed unnecessary "use" statements.

core/lib/Drupal/Core/DrupalKernel.php

@@ -7,15 +7,9 @@
 
 namespace Drupal\Core;
 
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\Routing\RequestContext;
 use Symfony\Component\HttpKernel\HttpKernel;
-use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
-use Symfony\Component\EventDispatcher\Event;
 use Symfony\Component\HttpKernel\Controller\ControllerResolverInterface;
-use Symfony\Component\HttpKernel\Event\GetResponseForExceptionEvent;
 use Symfony\Component\HttpKernel\EventListener\ExceptionListener;
 use Drupal\Core\EventSubscriber\ViewSubscriber;
 use Drupal\Core\EventSubscriber\AccessSubscriber;
@@ -27,8 +21,6 @@
 use Drupal\Core\EventSubscriber\RequestCloseSubscriber;
 use Drupal\Core\EventSubscriber\RouterListener;
 
-use Exception;
-
 /**
  * The DrupalKernel class is the core of Drupal itself.
  */

core/lib/Drupal/Core/EventSubscriber/AccessSubscriber.php

@@ -7,13 +7,9 @@
 
 namespace Drupal\Core\EventSubscriber;
 
-use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\HttpKernel\Event\GetResponseEvent;
-use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
-use Symfony\Component\Routing\Exception\ResourceNotFoundException;
-use Symfony\Component\Routing\Exception\MethodNotAllowedException;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
 /**

core/lib/Drupal/Core/EventSubscriber/LegacyControllerSubscriber.php

@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\EventSubscriber;
 
-use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\HttpKernel\Event\FilterControllerEvent;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;

core/lib/Drupal/Core/EventSubscriber/LegacyRequestSubscriber.php

@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\EventSubscriber;
 
-use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\HttpKernelInterface;
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\HttpKernel\Event\GetResponseEvent;

core/lib/Drupal/Core/EventSubscriber/PathSubscriber.php

@@ -7,7 +7,6 @@
 
 namespace Drupal\Core\EventSubscriber;
 
-use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\HttpKernel\Event\GetResponseEvent;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;

core/lib/Drupal/Core/EventSubscriber/RouterListener.php

@@ -15,7 +15,6 @@
 use Symfony\Component\HttpKernel\Log\LoggerInterface;
 use Symfony\Component\Routing\Matcher\UrlMatcherInterface;
 use Symfony\Component\Routing\Exception\ResourceNotFoundException;
-use Symfony\Component\Routing\Exception\MethodNotFoundException;
 
 /**
  * Drupal-specific Router listener.

core/lib/Drupal/Core/EventSubscriber/ViewSubscriber.php

@@ -11,10 +11,6 @@
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\HttpKernel\Event\GetResponseEvent;
-use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
-use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
-use Symfony\Component\Routing\Exception\ResourceNotFoundException;
-use Symfony\Component\Routing\Exception\MethodNotAllowedException;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
 use Drupal\Core\ContentNegotiation;

core/lib/Drupal/Core/ExceptionController.php

@@ -10,14 +10,9 @@
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpFoundation\JsonResponse;
-
 use Symfony\Component\HttpKernel\HttpKernelInterface;
-use Symfony\Component\EventDispatcher\EventDispatcher;
-use Symfony\Component\HttpKernel\Controller\ControllerResolver;
 use Symfony\Component\HttpKernel\Exception\FlattenException;
 
-use Exception;
-
 /**
  * This controller handles HTTP errors generated by the routing system.
  */

core/lib/Drupal/Core/LegacyUrlMatcher.php

@@ -8,13 +8,9 @@
 namespace Drupal\Core;
 
 use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\Routing\Exception\MethodNotAllowedException;
 use Symfony\Component\Routing\Exception\ResourceNotFoundException;
 use Symfony\Component\Routing\Matcher\UrlMatcherInterface;
-use Symfony\Component\Routing\Matcher\UrlMatcher as SymfonyUrlMatcher;
 use Symfony\Component\Routing\RequestContext;
-use Symfony\Component\Routing\Route;
-use Symfony\Component\Routing\RouteCollection;
 
 /**
  * UrlMatcher matches URL based on a set of routes.