Updated openstack/openstack
Project: openstack/nova  7680cccce8c2e7cc11f590a26773621d24ad4782

Remove unused py33 tox env

It's apparent that Nova is quite a ways from Py3K support, and
developers are not expected to run the py33 tox env. Rather than add
more envs for later Python interpreter versions which will be
equally broken, just remove it for now.

Change-Id: I885e6e8899f771cc52a2bf6282fd7bc1ed3083aa