squash migrations in preparation for mitaka

[Steve Martinelli]

squash everything that was included in kilo:

rename 067_drop_redundant_mysql_index.py to 067_kilo.py and delete the others

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/276079

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/276079
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=f5c64718a1c91fdce5c1da3b1043c14c5b0a97fd
Submitter: Jenkins
Branch: master

commit f5c64718a1c91fdce5c1da3b1043c14c5b0a97fd
Author: Steve Martinelli <email address hidden>
Date: Thu Feb 4 02:24:12 2016 -0500

    squash migrations - kilo

    only support db schema upgrades from kilo onwards

    a few notes for reviewers...

    * 052 and 063 were not ported over since they negated each other
    * 066 was not ported over since it just changed existing data
    * 067 was not ported over since it this was clean up from 062
    * removed the downgrade block from 067

    Change-Id: I07539920eed15290b6036906e34805a0f175a07a
    Closes-Bug: 1541092

[Thierry Carrez (ttx)]

This issue was fixed in the openstack/keystone 9.0.0.0b3 development milestone.