useless close_connection removed

src/http.rs

@@ -406,8 +406,6 @@ impl ConnectionManager for HttpManager {
         )?))
     }
 
-    fn close_connection(&self, _: &ConnectionInfo) {}
-
     fn get_server_addr(&self) -> SocketAddr {
         self.server
     }

src/socks.rs

@@ -350,8 +350,6 @@ impl ConnectionManager for SocksProxyManager {
         Ok(Box::new(SocksProxyImpl::new(info, credentials, self.version, command)?))
     }
 
-    fn close_connection(&self, _: &ConnectionInfo) {}
-
     fn get_server_addr(&self) -> SocketAddr {
         self.server
     }

src/tun2proxy.rs

@@ -204,7 +204,6 @@ pub(crate) trait ProxyHandler {
 
 pub(crate) trait ConnectionManager {
     fn new_proxy_handler(&self, info: &ConnectionInfo, udp_associate: bool) -> Result<Box<dyn ProxyHandler>>;
-    fn close_connection(&self, info: &ConnectionInfo);
     fn get_server_addr(&self) -> SocketAddr;
     fn get_credentials(&self) -> &Option<UserKey>;
 }