Revert "Do not use tokio::select! for race2"

This reverts commit 95ce856.

Author: rklaehn

src/server.rs

@@ -464,25 +464,10 @@ impl<T> Future for UnwrapToPending<T> {
 }
 
 pub(crate) async fn race2<T, A: Future<Output = T>, B: Future<Output = T>>(f1: A, f2: B) -> T {
-    // Pin the futures on the stack for polling
-    let mut f1 = std::pin::pin!(f1);
-    let mut f2 = std::pin::pin!(f2);
-
-    // Create a future that resolves when either f1 or f2 completes
-    std::future::poll_fn(|cx| {
-        // Poll both futures
-        match f1.as_mut().poll(cx) {
-            Poll::Ready(result) => return Poll::Ready(result),
-            Poll::Pending => {}
-        }
-        match f2.as_mut().poll(cx) {
-            Poll::Ready(result) => return Poll::Ready(result),
-            Poll::Pending => {}
-        }
-        // If neither is ready, yield back to the executor
-        Poll::Pending
-    })
-    .await
+    tokio::select! {
+        x = f1 => x,
+        x = f2 => x,
+    }
 }
 
 /// Run a server loop, invoking a handler callback for each request.