Updated openstack/openstack
Project: openstack/oslo.i18n  60f4b78cba329c75b82e79ff0fa4e5d6940050a0

Remove Babel version workaround code

Since Babel>=1.3 is required, code to work with earlier versions
can be removed and the logic made clearer.

Change-Id: I33f358912802fb1bd49ed377d974af9e213b9257