files-reg: Revert: Make try_clean_ghost() use struct ghost_file ptr
files-reg: Revert: Make try_clean_ghost() use struct ghost_file ptr

ghost_files populates another process, than who does try_clean_ghost(),
so this list is not visible for the cleaner. Revert the patch.

Signed-off-by: Kirill Tkhai <e5b39230c99b4d3ebd6aa54f6d823f95134bc39d@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@virtuozzo.com>

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