xfs/310: Cleanup

Cleanup couple of things that were objected to when creating test
ext4/033 out of this one.

Use _require_scratch_nocheck instead of recreating scratch fs before
exiting. Avoid needless cleanup of dmhugedev on exit - _cleanup
takes care of that. Use _scratch_unmount where possible.

Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
1 file changed