TrivialFix: Remove logging import unused

This patch removes logging import unused in
networking_l2gw/services/l2gateway/common/config.py
networking_l2gw/services/l2gateway/l2gw_agent.py
networking_l2gw/services/l2gateway/service_drivers/__init__.py
wqnetworking_l2gw/services/l2gateway/service_drivers/agent_api.py
networking_l2gw/tests/unit/db/test_l2gw_db.py

Change-Id: Ia3d9f27760a831bdf3ab8aa9abd2288d4baa4a15

networking_l2gw/services/l2gateway/common/config.py

@@ -16,11 +16,9 @@
 from neutron.common import config
 
 from oslo_config import cfg
-from oslo_log import log as logging
 
 from networking_l2gw._i18n import _
 
-LOG = logging.getLogger(__name__)
 
 OVSDB_OPTS = [
     cfg.StrOpt('ovsdb_hosts',

networking_l2gw/services/l2gateway/l2gw_agent.py

@@ -19,15 +19,12 @@ from neutron.common import rpc as n_rpc
 import sys
 
 from oslo_config import cfg
-from oslo_log import log as logging
 from oslo_service import service
 
 from networking_l2gw.services.l2gateway.agent.ovsdb import manager
 from networking_l2gw.services.l2gateway.common import config
 from networking_l2gw.services.l2gateway.common import topics
 
-LOG = logging.getLogger(__name__)
-
 
 class L2gatewayAgentService(n_rpc.Service):
     def start(self):

networking_l2gw/services/l2gateway/service_drivers/__init__.py

@@ -15,13 +15,9 @@
 
 import abc
 
-from oslo_log import log as logging
 import six
 
 
-LOG = logging.getLogger(__name__)
-
-
 @six.add_metaclass(abc.ABCMeta)
 class L2gwDriverBase(object):
 

networking_l2gw/services/l2gateway/service_drivers/agent_api.py

@@ -19,11 +19,8 @@ from networking_l2gw._i18n import _
 from networking_l2gw.services.l2gateway.common import constants as n_const
 from networking_l2gw.services.l2gateway import exceptions as l2gw_exc
 
-from oslo_log import log as logging
 import oslo_messaging as messaging
 
-LOG = logging.getLogger(__name__)
-
 
 class L2gatewayAgentApi(object):
     """L2gateway plugin to agent RPC API."""

networking_l2gw/tests/unit/db/test_l2gw_db.py

@@ -27,12 +27,10 @@ from networking_l2gw.services.l2gateway.common import l2gw_validators
 from networking_l2gw.services.l2gateway import exceptions
 
 from neutron_lib import exceptions as exc
-from oslo_log import log as logging
 from oslo_utils import importutils
 from oslo_utils import uuidutils
 
 DB_PLUGIN_KLASS = 'neutron.db.db_base_plugin_v2.NeutronDbPluginV2'
-LOG = logging.getLogger(__name__)
 _uuid = uuidutils.generate_uuid