Delete cargo_embargo intermediate am: e19998fd2c

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/maybe-async/+/3099758

Change-Id: I59795d5309f40ff96a7543b0d46f500df0e78cbd
Signed-off-by: Automerger Merge Worker <[email protected]>