We don't want annoying request from the web interface

The “support” tab in Sunstone check for subscription to the commercial
OpenNebula support:

    http://docs.opennebula.org/5.4/deployment/sunstone_setup/sunstone.html#commercial-support-integration

The “upgrade” tab check for new version in OpenNebula.

* tmpl/admin.yaml (enabled_tabs): disable “support-tab” and
  “upgrade-top-tab”.

* tmpl/admin_vcenter.yaml (enabled_tabs): ditoo.

Ref: #22068

tmpl/admin.yaml

@@ -39,8 +39,9 @@ enabled_tabs:
     - vdcs-tab
     - acls-tab
     - settings-tab
-    - support-tab
-    - upgrade-top-tab
+    # Do not enable external checking
+    # - support-tab
+    # - upgrade-top-tab
     - vmgroup-tab
 features:
     # True to show showback monthly reports, and VM cost

tmpl/admin_vcenter.yaml

@@ -39,8 +39,9 @@ enabled_tabs:
     - vdcs-tab
     - acls-tab
     - settings-tab
-    - support-tab
-    - upgrade-top-tab
+    # Do not enable external checking
+    # - support-tab
+    # - upgrade-top-tab
     - vmgroup-tab
 features:
     # True to show showback monthly reports, and VM cost