zdtm: Disable unlink_regular00 by default

Skip it till remap-links are supported.
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Acked-by: Andrew Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

test/zdtm/live/static/unlink_regular00.desc

-{'flavor': 'ns', 'flags': 'suid'}
+{'flavor': 'ns', 'flags': 'suid noauto'}