Remove unnecessary LOG initialisation

Remove a lot of getLogger lines and imports of logging in modules
which never use that functionality.

Change-Id: Icdaee2c540980412b000d02ebf1ec568dcf5b38a

nova/tests/test_imagecache.py

@@ -39,8 +39,6 @@ CONF = cfg.CONF
 CONF.import_opt('compute_manager', 'nova.service')
 CONF.import_opt('host', 'nova.netconf')
 
-LOG = logging.getLogger(__name__)
-
 
 class ImageCacheManagerTestCase(test.TestCase):
 

nova/tests/test_instance_types.py

@@ -23,11 +23,8 @@ from nova import db
 from nova.db.sqlalchemy import models
 from nova import exception
 from nova.openstack.common.db.sqlalchemy import session as sql_session
-from nova.openstack.common import log as logging
 from nova import test
 
-LOG = logging.getLogger(__name__)
-
 
 class InstanceTypeTestCase(test.TestCase):
     """Test cases for instance type code."""

nova/tests/test_libvirt.py

@@ -42,7 +42,6 @@ from nova import exception
 from nova.openstack.common import fileutils
 from nova.openstack.common import importutils
 from nova.openstack.common import jsonutils
-from nova.openstack.common import log as logging
 from nova.openstack.common import uuidutils
 from nova import test
 from nova.tests import fake_libvirt_utils
@@ -77,7 +76,6 @@ CONF.import_opt('compute_manager', 'nova.service')
 CONF.import_opt('host', 'nova.netconf')
 CONF.import_opt('my_ip', 'nova.netconf')
 CONF.import_opt('base_dir_name', 'nova.virt.libvirt.imagecache')
-LOG = logging.getLogger(__name__)
 
 _fake_network_info = fake_network.fake_get_instance_nw_info
 _fake_stub_out_get_nw_info = fake_network.stub_out_nw_api_get_instance_nw_info

nova/tests/test_powervm.py

@@ -28,7 +28,6 @@ from nova.compute import instance_types
 from nova.compute import power_state
 from nova.compute import task_states
 from nova.network import model as network_model
-from nova.openstack.common import log as logging
 from nova.tests import fake_network_cache_model
 from nova.tests.image import fake
 from nova.virt import images
@@ -39,8 +38,6 @@ from nova.virt.powervm import exception
 from nova.virt.powervm import lpar
 from nova.virt.powervm import operator
 
-LOG = logging.getLogger(__name__)
-
 
 def fake_lpar(instance_name):
     return lpar.LPAR(name=instance_name,