Revert "Listen for foreground AppOps changes"

This reverts commit 7370c8442e6649ef398402395e7f8c8eb6121bb9.

Top VOIP apps rely on the ability to record audio in the background
without capabilities. Fix breaks top CUJs, needs to be re-evaluated.

Reason for revert: b/285898282, b/268724205

Bug: 268724205
Test: Manual verification of Meet
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:8b11bc9a386bb01bd168607695d41f5197fdbd61)
Merged-In: Ie2b57f5d2247b6f771e1f6095e993d749ad685f9
Change-Id: Ie2b57f5d2247b6f771e1f6095e993d749ad685f9