Revert "Switch to use vnc_lite instead of vnc_auto"

This reverts commit eb72621cdca5ade749f87378117f5d6d2861255d.
diff --git a/roles/openstack_helm_nova/vars/main.yml b/roles/openstack_helm_nova/vars/main.yml
index 07eef18..5635922 100644
--- a/roles/openstack_helm_nova/vars/main.yml
+++ b/roles/openstack_helm_nova/vars/main.yml
@@ -137,7 +137,3 @@
     service_placement: false
     # NOTE(mnaser): Enable this once we've got Ironic deployed.
     statefulset_compute_ironic: false
-  compute_novnc_proxy:
-    # NOTE(rlin): vnc_auto was rename to vnc_lite in noVNC
-    # ref: https://github.com/novnc/noVNC/issues/695
-    path: /vnc_lite.html