Android 12.0.0 release 18
Remove palette hooks.

Make the method be part of the official palette API.

Bug: 186016399
Bug: 185778652
Test: m
Change-Id: I49291b0685263e2655f51baf16704af101079e40
Merged-In: I49291b0685263e2655f51baf16704af101079e40
(cherry picked from commit ce6fbce71e3e8d2ff538a03f982335fcc4d5447d)
5 files changed