Merge "Revert "Treat process group creation failure due to a dead process as non-fatal"" into main am: dfbc64d8aa am: 9fbd23bc87

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2746216

Change-Id: I5989aa9631668dd6cf2a64fe5e7d4c206d83329e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>