This reverts commit e1061a9371.
Upstream refactored util_est_update() in commit 6d2051403d
("sched/fair: Update util_est after updating util_avg during dequeue")
and this vendor hook needs to be refactored accordingly. Remove it now
but it can reland after the updates if really needed.
Bug: 170508405
Cc: Rick Yiu <rickyiu@google.com>
Change-Id: Ic49b4f8cd3a7de9c411b86e38e6a09fdde9c39b7
Signed-off-by: Carlos Llamas <cmllamas@google.com>