Remove omptough from standard run_tests.sh testing
Remove omptough from standard run_tests.sh testing

On some platforms (e.g. some AMD machines), if OMP_NUM_THREADS is not
set, then this test does not complete in a reasonable time.  That is
because on these platforms too many threads are spawned inside a large
loop.

arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi