ripout lge changes from lowmemorykiller

  - use jb_rel_2.0.3 lowmemorykiller

Change-Id: I642478cee1b9cc7474ab0e2a188c289106fb25b8
[M4/U0] Updated defconfig

Change-Id: Id4be095d2eb8081fb7daea63d13535df374cca8b