Revert^2 "Promote some issues to errors" am: 5038250af0 am: 7473d07853

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

Change-Id: Id6f176f4e65f109966ded2e186e4dad3cd56037b
Signed-off-by: Automerger Merge Worker <[email protected]>