zdtm.sh with zero iterations of dumping/restoring checks correctness of
tests.

$ bash test/zdtm.sh -i 0 zdtm/inotify00
Output file: /root/git/orig/criu/test/zdtm/live/static/inotify00.out
------------------------------------------------------------------------------
19:16:29.601:  6905: 	unlink 02       : event      0x200 -> IN_DELETE
19:16:29.602:  6905: 	unlink 02       : event      0x200 -> IN_DELETE
19:16:29.602:  6905: 	unlink 02       : event        0x8 -> IN_CLOSE_WRITE
19:16:29.602:  6905: 	unlink 02       : event        0x8 -> IN_CLOSE_WRITE
19:16:29.602:  6905: 	unlink 02       : event      0x400 -> IN_DELETE_SELF
19:16:29.602:  6905: 	unlink 02       : event     0x8000 -> IN_IGNORED
19:16:29.602:  6905: 	unlink 02       : read  6 events
19:16:29.614:  6905: 	after           : event        0x8 -> IN_CLOSE_WRITE
19:16:29.614:  6905: 	after           : read  1 events
19:16:29.614:  6905: FAIL: inotify00.c:217: Unhandled events in emask 0x200 -> IN_DELETE (errno = 11 (Resource temporarily unavailable))
------------------------------------- END -------------------------------------
================================= ERROR OVER =================================

This patch removes logic about linked files, because it's useless.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>