Remove tempest from list of projects that direct release.

This commit removes tempest from the list of projects that are
direct release. No when a tempest bug's fixing commit gets merged it
will be set to fix committed instead of fix released.

Change-Id: Iad9f2203e6694a428a7e4ab5be80c74a1fbb2016
Reviewed-on: https://review.openstack.org/36908
Reviewed-by: James E. Blair <corvus@inaugust.com>
Approved: Monty Taylor <mordred@inaugust.com>
Reviewed-by: Monty Taylor <mordred@inaugust.com>
Tested-by: Jenkins