Remove various legacy code paths

Author: nicolas-grekas

CHANGELOG.md

@@ -17,6 +17,8 @@ CHANGELOG
  * removed `GetResponseForExceptionEvent`, use `ExceptionEvent` instead
  * removed `PostResponseEvent`, use `TerminateEvent` instead
  * removed `SaveSessionListener` in favor of `AbstractSessionListener` 
+ * removed `Client`, use `HttpKernelBrowser` instead
+ * added method `getProjectDir()` to `KernelInterface`
 
 4.3.0
 -----

Client.php

@@ -11,7 +11,6 @@
 
 namespace Symfony\Component\HttpKernel\Fragment;
 
-use Symfony\Component\EventDispatcher\LegacyEventDispatcherProxy;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\Controller\ControllerReference;
@@ -34,7 +33,7 @@ class InlineFragmentRenderer extends RoutableFragmentRenderer
     public function __construct(HttpKernelInterface $kernel, EventDispatcherInterface $dispatcher = null)
     {
         $this->kernel = $kernel;
-        $this->dispatcher = LegacyEventDispatcherProxy::decorate($dispatcher);
+        $this->dispatcher = $dispatcher;
     }
 
     /**

Fragment/InlineFragmentRenderer.php

@@ -11,7 +11,6 @@
 
 namespace Symfony\Component\HttpKernel;
 
-use Symfony\Component\EventDispatcher\LegacyEventDispatcherProxy;
 use Symfony\Component\HttpFoundation\Exception\RequestExceptionInterface;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\RequestStack;
@@ -47,7 +46,7 @@ class HttpKernel implements HttpKernelInterface, TerminableInterface
 
     public function __construct(EventDispatcherInterface $dispatcher, ControllerResolverInterface $resolver, RequestStack $requestStack = null, ArgumentResolverInterface $argumentResolver = null)
     {
-        $this->dispatcher = LegacyEventDispatcherProxy::decorate($dispatcher);
+        $this->dispatcher = $dispatcher;
         $this->resolver = $resolver;
         $this->requestStack = $requestStack ?: new RequestStack();
         $this->argumentResolver = $argumentResolver;