Merge "Deprecate schedulerservice." am: 20f4d37273 am: f9a1bbd1db am: 8346e4ec33

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/1461488

Change-Id: I6b05450569a8e388fecbcb091963b88ee265d150