Revert "Revert "Use unversioned keystone endpoints""
Revert "Revert "Use unversioned keystone endpoints""

This reverts commit da1ca6e07c0d54d0ec5b94ebd78da81c6a46e780.

Depends-on: Id2c7e09611c1f8b06e6d272589b4ea3435b8de86
Change-Id: I1b2a65179b5863d8bcbc5dd02b615f4e6e564213

richliu/devstack,bigswitch/devstack,dtroyer/devstack,nawawi/openstack,openstack-dev/devstack,nawawi/openstack,group-policy/devstack,openstack-dev/devstack,bswartz/devstack,richliu/devstack,Mahito/devstack,noironetworks/devstack,group-policy/devstack,dtroyer/devstack,Mahito/devstack,bigswitch/devstack,noironetworks/devstack,bswartz/devstack