Updated openstack/openstack
Project: openstack/keystone  67d6ee753112352a180cafd5c2bda8fd82f71742

Update tests to not use token_api

Update tests to use token_provider_api._persistence instead of
token_api (as token_api is deprecated).

Change-Id: Ie465dd2f15a5ac9695de230fd430ad511642682f
bp: non-persistent-tokens