[Trivial] replace logging with oslo.log

oslo.log provides more features and is a fundamental recommended
library to use.

Also the library oslo.log provides compatibility for log levels,
logging namespace is not needed.

Change-Id: I37439260d33024aee46c81f9b1db3130403d220c

manila/scheduler/filters/base.py

@@ -16,12 +16,12 @@
 """
 Filter support
 """
-import logging
+from oslo_log import log
 
 from manila.i18n import _LI
 from manila.scheduler import base_handler
 
-LOG = logging.getLogger(__name__)
+LOG = log.getLogger(__name__)
 
 
 class BaseFilter(object):

manila/scheduler/filters/capabilities.py

@@ -13,12 +13,12 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import logging
+from oslo_log import log
 
 from manila.scheduler.filters import base_host
 from manila.scheduler.filters import extra_specs_ops
 
-LOG = logging.getLogger(__name__)
+LOG = log.getLogger(__name__)
 
 
 class CapabilitiesFilter(base_host.BaseHostFilter):

manila/scheduler/filters/ignore_attempted_hosts.py

@@ -13,11 +13,11 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import logging
+from oslo_log import log
 
 from manila.scheduler.filters import base_host
 
-LOG = logging.getLogger(__name__)
+LOG = log.getLogger(__name__)
 
 
 class IgnoreAttemptedHostsFilter(base_host.BaseHostFilter):

manila/share/drivers/hpe/hpe_3par_driver.py

@@ -17,7 +17,6 @@
 import datetime
 import hashlib
 import inspect
-import logging
 import os
 import re
 
@@ -199,7 +198,7 @@ class HPE3ParShareDriver(driver.ShareDriver):
 
         try:
             # Log the source SHA for support.  Only do this with DEBUG.
-            if LOG.isEnabledFor(logging.DEBUG):
+            if LOG.isEnabledFor(log.DEBUG):
                 LOG.debug('HPE3ParShareDriver SHA1: %s',
                           self.sha1_hash(HPE3ParShareDriver))
                 LOG.debug('HPE3ParMediator SHA1: %s',