Use ip_substring_port_filtering from neutron-lib

The module neutron/extensions/ip_substring_port_filtering_lib is
a temporary work-around and should be deleted once it is
available on neutron-lib.

NeutronLibImpact

Change-Id: I01e380a9e44a31205e37c425a2b4795e3a191d9e

neutron/extensions/ip_substring_port_filtering.py

@@ -12,10 +12,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from neutron_lib.api.definitions import ip_substring_port_filtering as apidef
 from neutron_lib.api import extensions
 
-from neutron.extensions import ip_substring_port_filtering_lib as apidef
-
 
 class Ip_substring_port_filtering(extensions.APIExtensionDescriptor):
     """Extension class supporting IP substring port filtering."""

neutron/extensions/ip_substring_port_filtering_lib.py

@@ -1,64 +0,0 @@
-#    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.
-
-"""
-TODO(hongbin): This module should be deleted once neutron-lib containing
-https://review.openstack.org/#/c/525284/ change is released.
-"""
-
-# The alias of the extension.
-ALIAS = 'ip-substring-filtering'
-
-# Whether or not this extension is simply signaling behavior to the user
-# or it actively modifies the attribute map.
-IS_SHIM_EXTENSION = True
-
-# Whether the extension is marking the adoption of standardattr model for
-# legacy resources, or introducing new standardattr attributes. False or
-# None if the standardattr model is adopted since the introduction of
-# resource extension.
-# If this is True, the alias for the extension should be prefixed with
-# 'standard-attr-'.
-IS_STANDARD_ATTR_EXTENSION = False
-
-# The name of the extension.
-NAME = 'IP address substring filtering'
-
-# The description of the extension.
-DESCRIPTION = "Provides IP address substring filtering when listing ports"
-
-# A timestamp of when the extension was introduced.
-UPDATED_TIMESTAMP = "2017-11-28T09:00:00-00:00"
-
-# The resource attribute map for the extension.
-RESOURCE_ATTRIBUTE_MAP = {
-}
-
-# The subresource attribute map for the extension.
-SUB_RESOURCE_ATTRIBUTE_MAP = {
-}
-
-# The action map.
-ACTION_MAP = {
-}
-
-# The action status.
-ACTION_STATUS = {
-}
-
-# The list of required extensions.
-REQUIRED_EXTENSIONS = [
-]
-
-# The list of optional extensions.
-OPTIONAL_EXTENSIONS = [
-]