CORD-879 Eliminate Proxy models in VSG Service

Change-Id: I481974c391504c0566fe99caea79ef3b7d90b212
diff --git a/xos/tosca/resources/vcpeservice.py b/xos/tosca/resources/vcpeservice.py
index 1d8754c..4c177aa 100644
--- a/xos/tosca/resources/vcpeservice.py
+++ b/xos/tosca/resources/vcpeservice.py
@@ -5,6 +5,6 @@
     provides = "tosca.nodes.VSGService"
     xos_model = VSGService
     copyin_props = ["view_url", "icon_url", "enabled", "published", "public_key",
-                    "private_key_fn", "versionNumber", "backend_network_label",
+                    "private_key_fn", "versionNumber",
                     "dns_servers", "node_label", "docker_image_name", "docker_insecure_registry"]