Revert "Ram hack"

This reverts commit e299b5b251547c5cc1c44a60e53e87f497bde442.
Ramhack
lowmemorykiller: Compact memory when killing processes

* Memory compaction is never invoked on Android because we avoid swap
   and don't allocate huge pages. Fix it by invoking compaction from the LMK when
   a process is killed to reduce memory fragmentation.

Change-Id: I2bda790c2093e65fd6f43d52ea5149d6b57cb1e9

Conflicts:

	drivers/staging/android/lowmemorykiller.c

Signed-off-by: artas182x <artas182x@gmail.com>