Remove unused Response import

Conflicts:
	src/AuthorizationMiddlewareFactory.php

Author: geerteltink

LICENSE.md

@@ -1,4 +1,4 @@
-Copyright (c) 2017, Zend Technologies USA, Inc.
+Copyright (c) 2017-2018, Zend Technologies USA, Inc.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification,

src/AuthorizationMiddlewareFactory.php

@@ -1,14 +1,13 @@
 <?php
 /**
  * @see       https://github.com/zendframework/zend-expressive-authorization for the canonical source repository
- * @copyright Copyright (c) 2017 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright Copyright (c) 2017-2018 Zend Technologies USA Inc. (https://www.zend.com)
  * @license   https://github.com/zendframework/zend-expressive-authorization/blob/master/LICENSE.md New BSD License
  */
 
 namespace Zend\Expressive\Authorization;
 
 use Psr\Container\ContainerInterface;
-use Zend\Diactoros\Response;
 use Zend\Expressive\Authentication\ResponsePrototypeTrait;
 
 class AuthorizationMiddlewareFactory