Merge "Revert "Implement the ThreadPrioritySetter interface"" am: b01d0fe127 am: f7ac1ee91d am: 05a7df810c am: 149f54eb11

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1440013

Change-Id: I3cd3845bd538a95676744d0976d963455a2949df