Use olso.log directly

As the openstack/common is deprecated, Watcher should use oslo lib
directly to run in the openstack env. So there is much work to do
with oslo. This patch fixed the log part.

Change-Id: I3145a842fe3a22b3d08fec60d180329073edd50f

watcher/api/middleware/auth_token.py

@@ -15,12 +15,13 @@
 
 import re
 
+from oslo_log import log
+
 from keystonemiddleware import auth_token
 
 from watcher.common import exception
 from watcher.common.i18n import _
 from watcher.common import utils
-from watcher.openstack.common import log
 
 LOG = log.getLogger(__name__)
 

watcher/api/middleware/parsable_error.py

@@ -26,9 +26,10 @@ from xml import etree as et
 
 import webob
 
+from oslo_log import log
+
 from watcher.common.i18n import _
 from watcher.common.i18n import _LE
-from watcher.openstack.common import log
 
 LOG = log.getLogger(__name__)