Revert "sched/fair: Fix inaccurate tally of ttwu_move_affine"

This reverts commit 3e09b68f which is
commit 39afe5d6 upstream.

It breaks the Android kernel abi and if needed, can be brought back in
an abi-safe way in the future.

Bug: 161946584
Change-Id: I09918382e0f8bceb151331e99a40c52c062ba202
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>