Cleanup cargo2android configs and patches am: f49403b915 am: f05000d33f

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/bindgen/+/2751063

Change-Id: I92a75579ed5764e9ae7ddee951d234e099b2e822
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>