mm/compaction: clean up unused code lines
mm/compaction: clean up unused code lines

Remove code lines currently not in use or never called.

Signed-off-by: Heesub Shin <45471ea77bd08f3d26635f3f5adb40ba41250a2b@samsung.com>
Acked-by: Vlastimil Babka <db766431e3f0373ca1ec8fa855cfd5f84b2f2eb6@suse.cz>
Cc: Dongjun Shin <80e36e460d3c6c0a84b627b24ca7e4def049c844@samsung.com>
Cc: Sunghwan Yun <ce8f43f79ef8c28177c9fe54b84533532f0eed18@samsung.com>
Cc: Minchan Kim <eee62f459f15dcddf87a8df69e8328e2a2562028@kernel.org>
Cc: Mel Gorman <39ea6a09710987173e32e37c86918024a0f441c1@suse.de>
Cc: Joonsoo Kim <bb6c8cfe7699e0f11d1bee88022eb563a5f8e881@lge.com>
Cc: Bartlomiej Zolnierkiewicz <24970bf3d8506c473367e9292a8e5eb43a40bda0@samsung.com>
Cc: Michal Nazarewicz <605208d9b4c769ca62e9f9f8b592c9cd465fe6d7@mina86.com>
Cc: Naoya Horiguchi <8e7a128cd0264d3269a891fb3e87507c2985f8af@ah.jp.nec.com>
Cc: Christoph Lameter <ef3ecccf258fa062c5c6521a4887d40541963af7@linux.com>
Cc: Rik van Riel <a21938f5d463ddf41aa718934c205ca2cce8ebbc@redhat.com>
Cc: Dongjun Shin <80e36e460d3c6c0a84b627b24ca7e4def049c844@samsung.com>
Cc: Sunghwan Yun <ce8f43f79ef8c28177c9fe54b84533532f0eed18@samsung.com>
Signed-off-by: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs