Upgrade error_prone annotations to 2.4.0 am: 8136741536 am: 889c5f80ec am: 24dcd247c5 Original change: https://android-review.googlesource.com/c/platform/external/error_prone/+/1472525 Change-Id: I27a139be1b18e0acdbd4690fff622d5792a1be79