Remove run_project_tests.sh script
Remove run_project_tests.sh script

Once [1] is merged, this script will no longer be used. It is also
not very well maintained (run_tests.sh is), so let's remove it.

[1] - https://review.rdoproject.org/r/23686

Change-Id: I3c442cb845fef8cd67342050b2a4ceacd3d1213d

openstack-packages/DLRN,openstack-packages/DLRN,openstack-packages/delorean,openstack-packages/delorean