Merge "Remove cutils threads.h header completely." into main am: 4ed0e12d...

Merge "Remove cutils threads.h header completely." into main am: 4ed0e12d am: b1f6f92d am: e408e7aa am: ed0a78ef am: 48f55c5e

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2702415



Change-Id: Ib49a79f1ade0b4dea25dc834a2788cff32196fcb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>