fix: remove tcpproxy copy error handling

Author: aslafy-z

pkg/tcpproxy/tcp.go

@@ -125,9 +125,8 @@ func (p *TCPProxy) Handle(conn net.Conn) {
 
 func pipe(client, server net.Conn) {
 	doCopy := func(s, c net.Conn, cancel chan<- bool) {
-		if _, err := io.Copy(s, c); err != nil {
-			klog.Errorf("Error copying data: %v", err)
-		}
+		//nolint:errcheck // No need to catch these errors
+		io.Copy(s, c)
 		cancel <- true
 	}