Remove unused imports

Change-Id: I3e92e2a010dc9ab333e64d18337995d12ad55bc3

glance/tests/unit/test_image_cache.py

@@ -18,15 +18,12 @@
 from contextlib import contextmanager
 import hashlib
 import os
-import random
-import shutil
 import StringIO
 
 import fixtures
 import stubout
 
 from glance.common import exception
-from glance.common import utils
 from glance import image_cache
 #NOTE(bcwaldon): This is imported to load the registry config options
 import glance.registry

glance/tests/unit/test_migrations.py

@@ -25,7 +25,6 @@ properly both upgrading and downgrading, and that no data loss occurs
 if possible.
 """
 
-import collections
 import commands
 import ConfigParser
 import datetime
@@ -37,9 +36,7 @@ from oslo.config import cfg
 import sqlalchemy
 
 from glance.common import crypt
-from glance.common import exception
 import glance.db.migration as migration
-from glance.db.sqlalchemy import api
 import glance.db.sqlalchemy.migrate_repo
 from glance.db.sqlalchemy.migration import versioning_api as migration_api
 from glance.db.sqlalchemy import models

glance/tests/unit/test_policy.py

@@ -16,7 +16,6 @@
 import os.path
 
 import oslo.config.cfg
-import stubout
 
 import glance.api.policy
 from glance.common import exception

glance/tests/unit/v2/test_image_members_resource.py

@@ -20,8 +20,6 @@ from oslo.config import cfg
 import webob
 
 import glance.api.v2.image_members
-from glance.openstack.common import uuidutils
-from glance.tests.unit import base
 import glance.tests.unit.utils as unit_test_utils
 import glance.tests.utils as test_utils