Revert "net: add UdpSocket::peer_addr (#4362)"

This reverts commit a9d9bde.

tokio/src/net/udp.rs

@@ -278,29 +278,6 @@ impl UdpSocket {
         self.io.local_addr()
     }
 
-    /// Returns the socket address of the remote peer this socket was connected
-    /// to.
-    ///
-    /// # Example
-    ///
-    /// ```
-    /// use tokio::net::UdpSocket;
-    /// # use std::{io, net::SocketAddr};
-    ///
-    /// # #[tokio::main]
-    /// # async fn main() -> io::Result<()> {
-    /// let addr = "127.0.0.1:0".parse::<SocketAddr>().unwrap();
-    /// let peer_addr = "127.0.0.1:11100".parse::<SocketAddr>().unwrap();
-    /// let sock = UdpSocket::bind(addr).await?;
-    /// sock.connect(peer_addr).await?;
-    /// assert_eq!(sock.peer_addr()?.ip(), peer_addr.ip());
-    /// # Ok(())
-    /// # }
-    /// ```
-    pub fn peer_addr(&self) -> io::Result<SocketAddr> {
-        self.io.peer_addr()
-    }
-
     /// Connects the UDP socket setting the default destination for send() and
     /// limiting packets that are read via recv from the address specified in
     /// `addr`.

tokio/tests/udp.rs

@@ -3,7 +3,6 @@
 
 use futures::future::poll_fn;
 use std::io;
-use std::net::SocketAddr;
 use std::sync::Arc;
 use tokio::{io::ReadBuf, net::UdpSocket};
 use tokio_test::assert_ok;
@@ -485,12 +484,3 @@ async fn poll_ready() {
         }
     }
 }
-
-#[tokio::test]
-async fn peer_addr() {
-    let addr = "127.0.0.1:0".parse::<SocketAddr>().unwrap();
-    let peer_addr = "127.0.0.1:11100".parse::<SocketAddr>().unwrap();
-    let sock = UdpSocket::bind(addr).await.unwrap();
-    sock.connect(peer_addr).await.unwrap();
-    assert_eq!(sock.peer_addr().unwrap().ip(), peer_addr.ip());
-}