Removing more unused use statement

Author: moufmouf

Controller/GraphqliteController.php

@@ -11,26 +11,19 @@
 use Symfony\Bridge\PsrHttpMessage\Factory\PsrHttpFactory;
 use TheCodingMachine\GraphQLite\Http\HttpCodeDecider;
 use function array_map;
-use GraphQL\Error\ClientAware;
 use GraphQL\Error\Debug;
-use GraphQL\Error\Error;
 use GraphQL\Executor\ExecutionResult;
 use GraphQL\Executor\Promise\Promise;
 use GraphQL\Server\ServerConfig;
 use GraphQL\Server\StandardServer;
 use GraphQL\Upload\UploadMiddleware;
-use function in_array;
 use function json_decode;
 use Psr\Http\Message\ServerRequestInterface;
 use RuntimeException;
 use Symfony\Bridge\PsrHttpMessage\HttpMessageFactoryInterface;
-use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpFoundation\JsonResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpKernel\Event\GetResponseEvent;
-use Symfony\Component\HttpKernel\HttpKernelInterface;
-use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\Routing\Route;
 use Symfony\Component\Routing\RouteCollection;
 use TheCodingMachine\Graphqlite\Bundle\Context\SymfonyGraphQLContext;