Updated openstack/openstack
Project: openstack/python-glanceclient  d84311f1f171dfa6dd10dda940f5ede8bfde1670

Remove py3k module

This module is obsolete and has been dropped from oslo-incubator.
Use six instead (which is already done here).

Change-Id: I8e0b49cdfbddcf2d44a601ad06be2e75897905fc