delete unnecessary design controller

src/Umbraco.Web.UI.Client/src/views/documenttype/views/design/design.controller.js

@@ -1,19 +0,0 @@
-/**
- * @ngdoc controller
- * @name Umbraco.Editors.DocumentType.ListViewController
- * @function
- *
- * @description
- * The controller for the content type editor list view section
- */
-(function() {
-    'use strict';
-
-    function DesignController($scope, contentTypeResource, dataTypeResource, contentTypeHelper, dataTypeHelper) {
-
-        var vm = this;
-
-    }
-
-    angular.module("umbraco").controller("Umbraco.Editors.DocumentType.DesignController", DesignController);
-})();

src/Umbraco.Web.UI.Client/src/views/documenttype/views/design/design.html

@@ -1,5 +1 @@
-<div ng-controller="Umbraco.Editors.DocumentType.DesignController as vm">
-
-    <umb-groups-builder model="model"></umb-groups-builder>
-    
-</div>
+<umb-groups-builder model="model"></umb-groups-builder>