Move other non-devstack precise jobs to quantal.

All remaining unit tests and builds which previously took place on
persistent precise*.slave.openstack.org servers now run on quantal
servers instead.

Change-Id: Ie4a59eeb7e3895f5d35471377c3bea462c615f50
Reviewed-on: https://review.openstack.org/26084
Reviewed-by: matthew-wagoner <matthew.wagoner@hp.com>
Reviewed-by: Monty Taylor <mordred@inaugust.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Approved: Jeremy Stanley <fungi@yuggoth.org>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Tested-by: Jenkins