Revert "[AppOps] Remove unwanted UidState objects more quickly"

Revert submission 25954841

Reason for revert: b/325556565 

Reverted changes: /q/submissionid:25954841
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:bbd2c5a969b619b0ca1d9d91be6c299ec2d7db12)
Merged-In: I0f3ebd68dfdcd72afbaa98949ce3052b82a9171e
Change-Id: I0f3ebd68dfdcd72afbaa98949ce3052b82a9171e