Update hyper and other fixes

tonic-examples/src/helloworld/server.rs

@@ -22,13 +22,8 @@ impl MyGreeter {
 
         let string = &self.data;
 
-        let when = tokio::clock::now() + Duration::from_millis(100);
-        Delay::new(when).await;
-
         println!("My data: {:?}", string);
 
-        Delay::new(when).await;
-
         let reply = hello_world::HelloReply {
             message: "Zomg, it works!".into(),
         };