Remove tokio-util for WASM targets

[jonasstrehle]

Disabled take_raw_by_id for WASM targets, since mio seems to be pulled in by tokio-util which is not WASM compatible

[johanhelsing]

Thanks. What happens specifically, when mio is pulled in?

[jonasstrehle]

Thanks. What happens specifically, when mio is pulled in?

Something similar to Unresolved import crate::sys::tcp.

[johanhelsing]

So it's a build error? How come it isn't caught by ci?