Revert "lowmemorykiller: Compact memory when killing processes"

This reverts commit 77da76068d5c1471d9727ab0c961a71862a040c7.
Revert "ondemand: Add support to consider other cpu load when scaling frequencies"

This reverts commit c48999edb169a929f969862a4254c0313d664db0.
Update defconfigs