Revert "Fix build errors after vhost-user-backend update" am: ba6184d634 am: 846b33076b

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/vhost-device-vsock/+/3390801

Change-Id: I56aac75a87c969aeb058be51b1d6f41a4d142d04
Signed-off-by: Automerger Merge Worker <[email protected]>