Fixing olt unit tests

Change-Id: I41c7d9e8a9f7c4dbc95dea1a4419f1cee9cd4a1e
diff --git a/xos/synchronizer/steps/test_sync_onu_device.py b/xos/synchronizer/steps/test_sync_onu_device.py
index 89b7b30..612b44f 100644
--- a/xos/synchronizer/steps/test_sync_onu_device.py
+++ b/xos/synchronizer/steps/test_sync_onu_device.py
@@ -34,8 +34,7 @@
 
         from xossynchronizer.mock_modelaccessor_build import mock_modelaccessor_config
         mock_modelaccessor_config(test_path, [("olt-service", "volt.xproto"),
-                                                ("vsg", "vsg.xproto"),
-                                                ("rcord", "rcord.xproto"),])
+                                                ("rcord", "rcord.xproto")])
 
         import xossynchronizer.modelaccessor
         reload(xossynchronizer.modelaccessor)      # in case nose2 loaded it in a previous test