This reverts commit3d5bad71a7. Upstream has removed pick_next_task_fair() in commit5ad278dd20("sched: Remove sched_class::pick_next_task()"), so we can't have this hook there anymore. Plus, it doesn't seem to be critical functionality to be in android-mainline. Bug: 413566818 Cc: John Stultz <jstultz@google.com> Change-Id: Ifc26a14474668f8462e1c9c94fdb969a2b76aab3 Signed-off-by: Carlos Llamas <cmllamas@google.com>