Fixes group node route

src/Umbraco.Web.UI.Client/src/common/directives/components/tree/umbtree.directive.js

@@ -80,6 +80,7 @@ function umbTreeDirective($q, $rootScope, treeService, notificationsService, use
             // entire tree again since we already still have it in memory. Of course if the section is different we will
             // reload it. This saves a lot on processing if someone is navigating in and out of the same section many times
             // since it saves on data retreival and DOM processing.
+            //TODO: This isn't used!?
             var lastSection = "";
             
             /** Helper function to emit tree events */
@@ -91,6 +92,7 @@ function umbTreeDirective($q, $rootScope, treeService, notificationsService, use
                 }
             }
 
+            //TODO: This isn't used!?
             function clearCache(section) {
                 treeService.clearCache({ section: section });
             }