Remove some unused mocks
Remove some unused mocks

Change-Id: I25c59933cd61eff31d02b3c763f6ebd5551d3231

dtroyer/python-openstacksdk,openstack/python-openstacksdk,openstack-infra/shade,stackforge/python-openstacksdk,openstack-infra/shade,dtroyer/python-openstacksdk,openstack/python-openstacksdk,stackforge/python-openstacksdk