This reverts commit 8f1ba5892dd2b137a24e144febed2464f245ed1a.

This test doesn't work right now:
=[log]=> dump/zdtm/transition/maps007/174/3/restore.log
------------------------ grep Error ------------------------
(00.237564)      1:    `- FD 2 pid 6
(00.237566)      1:  `- type 1 ID 0xa
(00.237567)      1:    `- FD 3 pid 5
(00.237568)      1:    `- FD 3 pid 6
(00.240025)      1: Error (criu/image.c:432): Unable to open pages-3.img: Permission denied
(00.270600) uns: calling exit_usernsd (-1, 1)
(00.270640) uns: daemon calls 0x469f80 (199, -1, 1)
(00.270648) uns: `- daemon exits w/ 0
(00.271193) uns: daemon stopped
(00.271199) Error (criu/cr-restore.c:2308): Restoring FAILED.
------------------------ ERROR OVER ------------------------
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>