remove file and delete service_message in synchronizer.

Change-Id: I58349df77e1ff4fb973e341f508cbad7f3eff0f9
diff --git a/xos/models.py b/xos/models.py
index 39dfa7f..b06b72f 100644
--- a/xos/models.py
+++ b/xos/models.py
@@ -1,5 +1,10 @@
 # models.py -  vSGW Models
 
+from core.models import Service, TenantWithContainer
+from django.db import models, transaction
+
+MCORD_KIND = 'EPC'
+
 SERVICE_NAME = 'vsgw'
 SERVICE_NAME_VERBOSE = 'Virtual SGW Service'
 SERVICE_NAME_VERBOSE_PLURAL = 'Virtual SGW Services'
@@ -11,11 +16,10 @@
     KIND = SERVICE_NAME
 
     class Meta:
+        proxy = True
         app_label = SERVICE_NAME
         verbose_name = SERVICE_NAME_VERBOSE
 
-    service_message = models.CharField(max_length=254, help_text="Service Message to Display")
-
 class VSGWTenant(TenantWithContainer):
 
     KIND = SERVICE_NAME
@@ -29,21 +33,20 @@
         vsgw_service = VSGWService.get_service_objects().all()
         if vsgw_service:
             self._meta.get_field('provider_service').default = vsgw_service[0].id
-        super(ExampleTenant, self).__init__(*args, **kwargs)
+        super(VSGWTenant, self).__init__(*args, **kwargs)
 
     def save(self, *args, **kwargs):
         super(VSGWTenant, self).save(*args, **kwargs)
-        model_policy_exampletenant(self.pk)
+        model_policy_vsgwtenant(self.pk)
 
     def delete(self, *args, **kwargs):
         self.cleanup_container()
         super(VSGWTenant, self).delete(*args, **kwargs)
 
-
-def model_policy_exampletenant(pk):
+def model_policy_vsgwtenant(pk):
     with transaction.atomic():
         tenant = VSGWTenant.objects.select_for_update().filter(pk=pk)
         if not tenant:
             return
         tenant = tenant[0]
-        tenant.manage_container()
\ No newline at end of file
+        tenant.manage_container()