[YUNIKORN-3071] Disable queue UI v2 for release 1.7 (apache#232)

Hide the link to the new UI. Does not remove the new UI which can still
be accessed at /queues-v2

Closes: apache#232

Signed-off-by: Wilfred Spiegelenburg <wilfreds@apache.org>

Author: wilfred-s

src/app/app.component.html

@@ -36,6 +36,7 @@
         <span *ngIf="isNavOpen">Queues</span>
       </a>
     </li>
+    <!--
     <li routerLinkActive="active">
       <a routerLink="/queues-v2">
         <i class="fa fa-sitemap" style="width: 16px"></i>
@@ -46,6 +47,7 @@
         </div> 
       </a>
     </li>
+    -->
     <li routerLinkActive="active">
       <a routerLink="/applications">
         <i class="fa fa-indent text-center"></i>