Don't log the warning for an expected kill am: 1403606682 am: 7b8d84c130 am: 9f3eb16c0f

Original change: https://android-review.googlesource.com/c/platform/external/minijail/+/1692726

Change-Id: I51b3cd6b172e7332848694abde9be5671f6c351b