RO-2932 Remove unused run_tempest.yml (#2828)
RO-2932 Remove unused run_tempest.yml (#2828)

This patch removes the unused `run_tempest.yml` playbook that is
no longer referenced in rpc-openstack and rpc-gating.
hughsaunders/rpc-openstack,rcbops/rpc-openstack,robb-romans/rpc-openstack,robb-romans/rpc-openstack,rcbops/rpc-openstack,BjoernT/rpc-openstack,BjoernT/rpc-openstack,cloudnull/rpc-openstack,jacobwagner/rpc-openstack,jacobwagner/rpc-openstack,cloudnull/rpc-openstack,hughsaunders/rpc-openstack