Revert "trq-1886 qrerun is changed to look at the kill_delay setting. If the setting is zero qrerun behaves the same by sending the SIGKILL and immediately restarting. If the delay is non -zero then qrerun sends the SIGTERM waits the delay time and sends the SIGKILL before restarting."

This reverts commit 6cdb2ff1e5863615ea58081d1892ca3e11d7542e.