Remove unused imports in glance

[Lee Li]

There are some unused import in glance. The command 'find . -type f -name "*py" -exec pylint -r n {} \; | grep -E "Unused imp|^\*"' check out one:
************* Module glance.tests.unit.test_image_cache
W: 33,0: Unused import glance

And there are some can't check out by this command, such as 'import domain' in v2.image_data.py.

[Viktor Serhieiev (vsergeyev)]

We already allowed F401 check in tox.ini. So its should be enough for us.

As for this module - I guess, that the issue is deeper. See the code of glance.tests.unit.test_image_cache module.

      32 #NOTE(bcwaldon): This is imported to load the registry config options
EE 33 import glance.registry # noqa

[Lee Li (lilinguo)]

How aboud 'import domain' in v2.image_data.py and 'import glance.store' in import glance.store and so on.

F401 check in tox.ini can check out there? Thanks.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/64127

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/64127
Committed: https://git.openstack.org/cgit/openstack/glance/commit/?id=e896c69f6e57802f525da7fb6f5201daf23cd810
Submitter: Jenkins
Branch: master

commit e896c69f6e57802f525da7fb6f5201daf23cd810
Author: llg8212 <email address hidden>
Date: Thu Dec 26 19:07:27 2013 +0800

    Remove unused imports in glance

    There are some unused import in glance, such as 'import domain' in v2.image_data.py.

    Change-Id: I9c3f06bfde4dbf130dd8525fc00b3f73c30ab4d7
    Closes-Bug:#1264245