Android Mainline 12.0.0 Release 63 (7993649,com.google.android.networkstack)
Remove palette hooks. am: 4dd12b1f0c

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/libartpalette/+/14881277

Change-Id: I22d03a035ea37cfd5cc46cd5c4b04b6a3897e225