Remove B type param: Follow ups (#1789)

Co-authored-by: Jonas Platte <[email protected]>
Co-authored-by: Michael Scofield <[email protected]>

axum-macros/tests/debug_handler/pass/state_and_body.rs

@@ -1,8 +1,8 @@
 use axum_macros::debug_handler;
-use axum::{extract::State, http::Request};
+use axum::{extract::State, extract::Request};
 
 #[debug_handler(state = AppState)]
-async fn handler(_: State<AppState>, _: Request<axum::body::Body>) {}
+async fn handler(_: State<AppState>, _: Request) {}
 
 #[derive(Clone)]
 struct AppState;