ZTS: Fix zpool_status_-s

After commit 5e74ac51 which split and reordered the run files the
`zpool_status_-s` test began failing.  The new ordering placed
the test after a previous test which used `zpool replace` to replace
a disk but did not clear its label.  This resulted in the next test,
`zpool_status_-s`, failing because of the potentially active
pool being detected on the replaced vdev.

    /dev/loop0 is part of potentially active pool 'testpool'

Use the default_mirror_setup_noexit() and default_cleanup_noexit()
functions to create the pool in `zpool_status_-s`.  They use the -f
flag by default.

In the `scrub_after_resilver` test wipe the label during cleanup
to prevent future failures if the tests are again reordered.

Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9451

tests/zfs-tests/tests/functional/fault/scrub_after_resilver.ksh

@@ -42,6 +42,7 @@ function cleanup
 	# Restore our zed.rc
 	log_must zed_rc_restore $zedrc_backup
 	default_cleanup_noexit
+	log_must zpool labelclear -f $DISK1
 }
 
 log_onexit cleanup

tests/zfs-tests/tests/functional/fault/zpool_status_-s.ksh

@@ -41,14 +41,14 @@ DISK=${DISKS%% *}
 
 verify_runnable "both"
 
-log_must zpool create $TESTPOOL mirror ${DISKS}
+default_mirror_setup_noexit $DISKS
 
 function cleanup
 {
 	log_must zinject -c all
 	log_must set_tunable64 zio_slow_io_ms $OLD_SLOW_IO
 	log_must set_tunable64 zfs_slow_io_events_per_second $OLD_SLOW_IO_EVENTS
-	log_must destroy_pool $TESTPOOL
+	default_cleanup_noexit
 }
 
 log_onexit cleanup