message: refactor(server): remove commented out where bounds
diff: @@ -308,10 +308,9 @@ impl<E> Http<E> {
  where
  S: Service<ReqBody=Body, ResBody=Bd>,
  S::Error: Into<Box<::std::error::Error + Send + Sync>>,
  - //S::Future: Send + 'static,
  Bd: Payload,
  I: AsyncRead + AsyncWrite,
  - E: H2Exec<S::Future, Bd>//Box<Future<Item=(), Error=()> + Send>>,
  + E: H2Exec<S::Future, Bd>,
  {
  let either = match self.mode {
  ConnectionMode::H1Only | ConnectionMode::Fallback => {
  