remove unneeded periodic jobs

remove full tempest private hourlies and public dailies as we're now
running full tempest on all of tempest and core projects.

now that postgresql is in the tempest gate, and running on every
core project in non-voting, we don't need a periodic job for that
either.

Change-Id: I3dd73cb71bb53532524030f5dc7f0dbdc71c62a7
Reviewed-on: https://review.openstack.org/21212
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Reviewed-by: Paul Belanger <paul.belanger@polybeacon.com>
Approved: Monty Taylor <mordred@inaugust.com>
Reviewed-by: Monty Taylor <mordred@inaugust.com>
Tested-by: Jenkins