Revert^6 "Thread suspension cleanup and deadlock fix" am: fe9b34f845 am: 9404f7d63a am: 626833674f

Original change: https://android-review.googlesource.com/c/platform/art/+/2266238

Change-Id: I3ec5ea7c228686b09cac42cef6acfb90e5a84c89
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>