fstests: remove tools/auto-qa

fstests: remove tools/auto-qa

This is a 2000s era SGI test script that no-one uses anymore. It
likely doesn't even work because it is dependent on CVS and/or
the SGI proprietary ptools revision control system for source
control. Hence it clearly hasn't been used for years, so remove it.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: David Disseldorp <ddiss@suse.de>
Reviewed-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>