Updated openstack/openstack
Project: openstack/keystone  07e4b95da2c18f9642f8ebd4c5da20189b21521c

obsolete deployment docs

Now we use 'database' section instead, but the doc does not synchronize.

Change-Id: Ie73ec8225ce1290a4b8fdbb5b9db4c566b5ada22
Closes-Bug: #1377101