Revert "aries | p1: staging: android: lowmemorykiller: neglect swap cached pages in other_file"

This reverts commit 6e62d08d66c9f491aaf8f3716f10d9b8d49ea27d.

Signed-off-by: Humberto Borba <humberos@gmail.com>
Change-Id: Icc172bee842ece4b0df0b2fe056f4782434b8f87