Updated openstack/openstack
Project: openstack/oslo.messaging  965715c407651548cb790b4030457df4b37b45cd

Let oslotest manage the six.move setting for mox

This instruction to set up a move in six for the mox module conflicts
with the one in oslotest. We are trying to use mox3 everywhere, so
remove this instruction and let oslotest handle it.
Imported from the incubator change with the same ID.

Change-Id: I59d5799283233f8411044ddb15c8abfc8850014c