Revert "Fix None value for new reclass"

This reverts commit 03d3c7ae88bf727fb21ee2588ca31c10fda4a367.

Change-Id: I22e34d9c01cc5596606965bdffc1f4ed06e3174d
diff --git a/kubernetes/control/opencontrail.yml b/kubernetes/control/opencontrail.yml
index dc1bd4f..6b23781 100644
--- a/kubernetes/control/opencontrail.yml
+++ b/kubernetes/control/opencontrail.yml
@@ -9,12 +9,12 @@
   kubernetes:
     pool:
       network:
-        ~engine: {}
+        engine: none
         opencontrail:
           enabled: false
     master:
       network:
-        ~engine: {}
+        engine: none
         opencontrail:
           version: ${_param:opencontrail_version}
           public_ip_range: ${_param:opencontrail_public_ip_range }