reverting change that is breaking pruning

Change-Id: I42ce5daaf160df73c3404fb6fe3dbf47c90e46e8
diff --git a/default.xml b/default.xml
index f7a3601..e72b311 100644
--- a/default.xml
+++ b/default.xml
@@ -37,7 +37,6 @@
 <project path="orchestration/xos-services/vrouter" name="vrouter" groups="orchestration,services"/>
 <project path="orchestration/xos-services/vsg" name="vsg" groups="orchestration,services"/>
 <project path="orchestration/xos-services/vtr" name="vtr" groups="orchestration,services"/>
-<project path="orchestration/xos-libraries/ng-xos-lib" name="ng-xos-lib" groups="orchestration,libraries"/>
 
 <project path="incubator/voltha" name="voltha" groups="incubation"/>