Add wait for network delay

 * drop copypaste of function_override for VMs

Related-Prod: PRODX-00000
Change-Id: Ic5685926ae8dd783d66e3166d75becb191dbe56d
diff --git a/de/heat-templates/top.yaml b/de/heat-templates/top.yaml
index 53fe0ba..f00651e 100644
--- a/de/heat-templates/top.yaml
+++ b/de/heat-templates/top.yaml
@@ -106,6 +106,7 @@
     default: 'system.compact.openstack.control'
   functions_override:
     type: string
+    default: ''
   docker_ee_url:
     type: string
     default: 'https://s3-us-west-2.amazonaws.com/internal-docker-ee-builds/docker-ee-linux'