Fix latest unit test failures for Nexus py34

Nexus Unit tests failing with py34 at line 1171 test_cisco_mech.py
which is a LOG.debug line which should not exist in unit test.
Fix is to remove the offending line.

Change-Id: Ie6f39e1a75bdbb78919057a5c19169105ca56815
Closes-bug:  #1558222

networking_cisco/tests/unit/ml2/drivers/cisco/nexus/test_cisco_mech.py

@@ -17,7 +17,6 @@ import contextlib
 import mock
 
 from oslo_config import cfg
-from oslo_log import log as logging
 import webob.exc as wexc
 
 from networking_cisco.plugins.ml2.drivers.cisco.nexus import (
@@ -44,8 +43,6 @@ from neutron.plugins.ml2 import driver_context
 from neutron.tests.unit.plugins.ml2 import test_plugin
 
 
-LOG = logging.getLogger(__name__)
-
 PHYS_NET = 'physnet1'
 COMP_HOST_NAME = 'testhost'
 COMP_HOST_NAME_2 = 'testhost_2'
@@ -1168,7 +1165,6 @@ class TestCiscoNetworksV2(CiscoML2MechanismTestCase,
                                                   *args, **kwargs)
                 patched_plugin.side_effect = side_effect
                 res = self._create_network_bulk(self.fmt, 2, 'test', True)
-                LOG.debug("response is %s" % res)
                 # We expect an internal server error as we injected a fault
                 self._validate_behavior_on_bulk_failure(
                     res,