Remove nodes spec., deprecated in new way

Change-Id: I2677b0a5c5b564648ec3a1e8a0cd9bb9ad289080
diff --git a/classes/cluster/k8s-aio-contrail/infra/init.yml b/classes/cluster/k8s-aio-contrail/infra/init.yml
index ec7c359..812d237 100644
--- a/classes/cluster/k8s-aio-contrail/infra/init.yml
+++ b/classes/cluster/k8s-aio-contrail/infra/init.yml
@@ -16,7 +16,8 @@
     infra_config_deploy_address: 192.168.10.90
 
     cluster_domain: k8s-aio-contrail.local
-    cluster_name: k8s-aio-contrail
+    # Commented out for temponarily disable test
+    # cluster_name: k8s-aio-contrail
     apt_mk_version: nightly
   linux:
     network: