tests: identify timed out tests correctly

We want to get a stable status (i.e. -124) when a test has timed out,
but --preserve-status makes it to return whatever the process got.
Remove the flag, it behaves same but if timed out passes back -124.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
1 file changed