Remove now unused UdpSocketNew

See https://github.com/tokio-rs/tokio-core/issues/15#issuecomment-245552463

src/net/mod.rs

@@ -8,4 +8,4 @@ mod udp;
 
 pub use self::tcp::{TcpStream, TcpStreamNew};
 pub use self::tcp::{TcpListener, Incoming};
-pub use self::udp::{UdpSocket, UdpSocketNew};
+pub use self::udp::UdpSocket;

src/net/udp.rs

@@ -13,11 +13,6 @@ pub struct UdpSocket {
     io: PollEvented<mio::udp::UdpSocket>,
 }
 
-/// Future returned from `UdpSocket::bind` which will resolve to a `UdpSocket`.
-pub struct UdpSocketNew {
-    inner: IoFuture<UdpSocket>,
-}
-
 impl UdpSocket {
     /// Create a new UDP socket bound to the specified address.
     ///
@@ -257,15 +252,6 @@ impl fmt::Debug for UdpSocket {
     }
 }
 
-impl Future for UdpSocketNew {
-    type Item = UdpSocket;
-    type Error = io::Error;
-
-    fn poll(&mut self) -> Poll<UdpSocket, io::Error> {
-        self.inner.poll()
-    }
-}
-
 #[cfg(unix)]
 mod sys {
     use std::os::unix::prelude::*;