Revert "Change patched glance client to fit glance-client code change"
Revert "Change patched glance client to fit glance-client code change"

This reverts commit 20152f86f917b21ac5ffcc44e7320503ee354bfd.

Change-Id: Idd5bce85e39f213cc27bbb35a028df24d84840c9

openstack/powervc-driver,stackforge/powervc-driver,stackforge/powervc-driver,openstack/powervc-driver