Revert "chore(app-framework): Deprecate dispatcher middlewares prop"

This reverts commit 5ad7b7b.

Author: ChristophWurst

lib/private/AppFramework/Middleware/MiddlewareDispatcher.php

@@ -40,7 +40,6 @@
  */
 class MiddlewareDispatcher {
 	/**
-	 * @deprecated
 	 * @var array array containing all the middlewares
 	 */
 	private $middlewares;
@@ -63,7 +62,6 @@ public function __construct() {
 
 	/**
 	 * Adds a new middleware
-	 * @deprecated
 	 * @param Middleware $middleWare the middleware which will be added
 	 */
 	public function registerMiddleware(Middleware $middleWare) {