replace return <expr>; with <expr> [needless_return]

[dr-kernel]

When using tokio::test I'm getting
replace return <expr>; with <expr> [needless_return]
clippy warning.
Not a huge deal, but would be nice to not see it in all of my async tests.

rstest = 0.19
tokio = 1.37

Thanks!

[la10736]

What's about if you use just tokio?
Anyway, can you just post a simple example?