Cleanup deprecated tools am: 97418f6a8b am: 3aee051e81

Original change: https://android-review.googlesource.com/c/platform/system/tools/mkbootimg/+/2181574

Change-Id: Ifad0d42d10f2b68fd7845c820fddcd337f4191b3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>