Revert^2 "Support PER_DISPLAY_BRIGHTNESS."

This reverts commit 957e91f39b609f05bee6f72fbfaec3a16c30d784.

Reason for revert: Will add the broken test to presubmit and verify it passes.

Flag: EXEMPT HAL change
Bug: 336831738
Test: atest --host CarServiceHostUnitTest

Change-Id: I36c07520891eaebc61464abcd398799bd6c2cfda
3 files changed