keystone-paste.ini file is introduced by
I3a3ca2e74c0ae341105d3481f97956c6da473046 for a security risk of
admin_token_auth middleware. Now this middleware is removed by
I57586ccfa0ad1309cc806d95377dc1ecad015914. So it is safe to use upstream
keystone-paste.ini file.
This patch also keep custom paste file feature. Just put the file to
/etc/kolla/config/keystone/keyston-paste.ini path.
Closes-Bug: #1695023
Partially-Implements: blueprint custom-paste
Change-Id: Ieb983b6a9edb6a156928f6b56a4bd2dbed4281e2
6ce222af3e