Remove computeLoadingClass function call from gr-admin-view

Bug: Issue 6633
Change-Id: Iaa052280f9984ce91540ddc297fbeb6ddc9a7dcb
diff --git a/polygerrit-ui/app/elements/admin/gr-admin-view/gr-admin-view.html b/polygerrit-ui/app/elements/admin/gr-admin-view/gr-admin-view.html
index 458418a..f02241e 100644
--- a/polygerrit-ui/app/elements/admin/gr-admin-view/gr-admin-view.html
+++ b/polygerrit-ui/app/elements/admin/gr-admin-view/gr-admin-view.html
@@ -34,7 +34,7 @@
   <template>
     <style include="shared-styles"></style>
     <style include="gr-menu-page-styles"></style>
-    <gr-page-nav class$="[[_computeLoadingClass(_loading)]]">
+    <gr-page-nav>
       <ul class="sectionContent">
         <template id="adminNav" is="dom-repeat" items="[[_filteredLinks]]">
           <li class$="sectionTitle [[_computeSelectedClass(item.view, params)]]">