CORD-2057: Drop model policies from model implementation

Change-Id: If86cc8cd330cb5bda1706df99dcad725761b2151
diff --git a/xos/models.py b/xos/models.py
deleted file mode 100644
index 64d7374..0000000
--- a/xos/models.py
+++ /dev/null
@@ -1,93 +0,0 @@
-# Copyright 2017-present Open Networking Foundation
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-from models_decl import VMMEService_decl
-from models_decl import VMMEVendor_decl
-from models_decl import VMMETenant_decl
-
-from django.db import models
-from core.models import Service, XOSBase, Slice, Instance, ServiceInstance, TenantWithContainer, Node, Image, User, Flavor, NetworkParameter, NetworkParameterType, Port, AddressPool
-import os
-from django.db import models, transaction
-from django.forms.models import model_to_dict
-from django.db.models import *
-from operator import itemgetter, attrgetter, methodcaller
-from core.models import Tag
-from core.models.service import LeastLoadedNodeScheduler
-import traceback
-from xos.exceptions import *
-
-class VMMEService(VMMEService_decl):
-   class Meta:
-        proxy = True
-
-   def create_tenant(self, **kwargs):
-       t = VMMETenant(kind="vEPC", owner=self, connect_method="na", **kwargs)
-       t.save()
-       return t
-
-class VMMEVendor(VMMEVendor_decl):
-   class Meta:
-        proxy = True
-
-class VMMETenant(VMMETenant_decl):
-   class Meta:
-        proxy = True
-
-   def __init__(self, *args, **kwargs):
-       vmmeservices = VMMEService.get_service_objects().all()
-       if vmmeservices:
-           self._meta.get_field("owner").default = vmmeservices[0].id
-       super(VMMETenant, self).__init__(*args, **kwargs)
-
-   @property
-   def image(self):
-       if not self.vmme_vendor:
-           return super(VMMETenant, self).image
-       return self.vmme_vendor.image
-
-   def save_instance(self, instance):
-       if self.vmme_vendor:
-           instance.flavor = self.vmme_vendor.flavor
-       super(VMMETenant, self).save_instance(instance)
-
-   def save(self, *args, **kwargs):
-       if not self.creator:
-           if not getattr(self, "caller", None):
-               raise XOSProgrammingError("VMMETenant's self.caller was not set")
-           self.creator = self.caller
-           if not self.creator:
-               raise XOSProgrammingError("VMMETenant's self.creator was not set")
-
-       super(VMMETenant, self).save(*args, **kwargs)
-       # This call needs to happen so that an instance is created for this
-       # tenant is created in the slice. One instance is created per tenant.
-       model_policy_vmmetenant(self.pk)
-
-   def delete(self, *args, **kwargs):
-       # Delete the instance that was created for this tenant
-       self.cleanup_container()
-       super(VMMETenant, self).delete(*args, **kwargs)
-
-def model_policy_vmmetenant(pk):
-    # This section of code is atomic to prevent race conditions
-    with transaction.atomic():
-        # We find all of the tenants that are waiting to update
-        tenant = VMMETenant.objects.select_for_update().filter(pk=pk)
-        if not tenant:
-            return
-        # Since this code is atomic it is safe to always use the first tenant
-        tenant = tenant[0]
-        tenant.manage_container()
-
diff --git a/xos/vmme.xproto b/xos/vmme.xproto
index 6c173a5..de2374a 100644
--- a/xos/vmme.xproto
+++ b/xos/vmme.xproto
@@ -2,7 +2,6 @@
 option verbose_name = "Virtual Mobility Management Entity";
 option app_label = "vmme";
 option kind = "vEPC";
-option legacy = "True";
 
 message VMMEService (Service){
     option name = "VMMEService";