Cleanup cargo2android configs and patches am: 36090a3098 am: 19dec1bcb3 am: 7e4284f260 am: 75afe95bcf

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/ring/+/2750928

Change-Id: Ic9592efa04521d3d92892199d5c15dda456a99d5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>