remove unneeded hardcoded route name from admin

Author: Simon Erhardt

Admin/RedirectRouteAdmin.php

@@ -21,16 +21,6 @@ class RedirectRouteAdmin extends Admin
 {
     protected $translationDomain = 'CmfRoutingBundle';
 
-    /**
-     * work around https://github.com/sonata-project/SonataAdminBundle/pull/1472
-     */
-    protected $baseRouteName = 'cmf_routing_redirectroute';
-
-    /**
-     * work around https://github.com/sonata-project/SonataAdminBundle/pull/1472
-     */
-    protected $baseRoutePattern = '/cmf/routing/redirectroute';
-
      /**
      * Root path for the route parent selection
      * @var string