Merge "Remove mode to convert legacy cargo2android.json." into main am: d93d7a6e5a

Original change: https://android-review.googlesource.com/c/platform/development/+/2880960

Change-Id: Ibd4d81329152ab13cda4ea7df728a881c0724af4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>