ONOS-6931 Deprecating build and usage of YMS subsystem.

Code still present and buildable via Maven.

Change-Id: Idbc77d20f7667f02eedb9e71099d6ae754a0a3a1
diff --git a/modules.defs b/modules.defs
index 6620431..fa8a16d 100644
--- a/modules.defs
+++ b/modules.defs
@@ -189,7 +189,7 @@
     '//apps/cpman/app:onos-apps-cpman-app-oar',
     '//apps/scalablegateway:onos-apps-scalablegateway-oar',
     '//apps/castor:onos-apps-castor-oar',
-    '//apps/yms:onos-apps-yms-oar',
+#    '//apps/yms:onos-apps-yms-oar',
     '//apps/ofagent:onos-apps-ofagent-oar',
     '//apps/mappingmanagement:onos-apps-mappingmanagement-oar',
     '//apps/config:onos-apps-config-oar',