Stop using mox in virt/libvirt/test_imagecache.py
Stop using mox in virt/libvirt/test_imagecache.py

Partially-Implements: blueprint remove-mox-ocata

Change-Id: I5e163d8b3d14475f0e6edafa031c73c02de28d65

vmturbo/nova,rajalokan/nova,jianghuaw/nova,Juniper/nova,hanlind/nova,mahak/nova,rajalokan/nova,mikalstill/nova,openstack/nova,openstack/nova,klmitch/nova,gooddata/openstack-nova,hanlind/nova,jianghuaw/nova,klmitch/nova,rajalokan/nova,Juniper/nova,hanlind/nova,mahak/nova,klmitch/nova,sebrandon1/nova,rahulunair/nova,rajalokan/nova,gooddata/openstack-nova,sebrandon1/nova,Juniper/nova,gooddata/openstack-nova,mikalstill/nova,vmturbo/nova,sebrandon1/nova,gooddata/openstack-nova,openstack/nova,phenoxim/nova,mikalstill/nova,rahulunair/nova,mahak/nova,vmturbo/nova,vmturbo/nova,phenoxim/nova,klmitch/nova,rahulunair/nova,jianghuaw/nova,jianghuaw/nova,Juniper/nova