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

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

Change-Id: I1c8d127cfa36748cc6115414c9887ecaec731a02