VOL-381 add unum container to support ONOS cluster formation under swarm

Change-Id: Ic260edda19bb199ed040f05164ab605f28c919d0
diff --git a/install/voltha-swarm-stop.sh b/install/voltha-swarm-stop.sh
index 2633cd9..86d5426 100755
--- a/install/voltha-swarm-stop.sh
+++ b/install/voltha-swarm-stop.sh
@@ -4,10 +4,11 @@
 docker service rm netconf_netconf
 docker service rm cli_cli
 docker service rm voltha_voltha
-docker service rm ofagent_ofagent 
+docker service rm ofagent_ofagent
 docker service rm vcore_vcore
 docker service rm tools
 docker stack rm consul
 docker stack rm kafka
-docker stack rm fluentd 
+docker stack rm fluentd
+docker stack rm onos
 docker network rm voltha_net