Revert "ANDROID: sched/fair: Don't balance misfits if it would overload local group"

This reverts commit 67de53b1.

We want to back-out the eas-dev merge that happened in the tree after
5.3-rc1 as those patches "should" all be in Linus's tree now.

This is done to handle the merge conflicts with 5.4-rc1.

Cc: Todd Kjos <tkjos@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I8b1a8909ce8d5eb8d1660586a8706fb6a674d751