Detach yms from build

Change-Id: I2f2b4c703aa1b1efc90d8c054ccec875119a272f
diff --git a/apps/pom.xml b/apps/pom.xml
index 5067788..ee873cb 100644
--- a/apps/pom.xml
+++ b/apps/pom.xml
@@ -73,7 +73,6 @@
         <module>gangliametrics</module>
         <module>graphitemetrics</module>
         <module>scalablegateway</module>
-        <module>yms</module>
         <module>tetopology</module>
         <module>rabbitmq</module>
         <module>learning-switch</module>