code clean in peers.rs

peer already removed in close_peer

src/p2p/peers.rs

@@ -227,7 +227,6 @@ impl Peers {
             None => {}
             Some(t) => {
                 self.close_peer(registry, &t);
-                self.peers.remove(&t);
             }
         }
     }
@@ -498,4 +497,4 @@ fn skip_private_addr(addr: &SocketAddr) -> bool {
     }
 
     false
-}
+}