Remove unused import

Remove unused import in utils.py

Change-Id: If8c8207c8687525ece1aff14a50057a40c49e5bb

ironic_inspector/utils.py

@@ -23,7 +23,6 @@ from oslo_middleware import cors as cors_middleware
 import pytz
 
 from ironic_inspector.common.i18n import _
-from ironic_inspector import conf  # noqa
 from ironic_inspector import policy
 
 CONF = cfg.CONF