Revert^2 "Promote some issues to errors" am: 5038250af0

Original change: https://android-review.googlesource.com/c/platform/external/error_prone/+/3025769

Change-Id: I50bf7aaf30671f46c89d92021f7399303a624f5c
Signed-off-by: Automerger Merge Worker <[email protected]>