Fix build issue with server

server/server.go

@@ -30,7 +30,7 @@ func (s *SMPPServer) Listen() error {
 	if err != nil {
 		return fmt.Errorf("failed to start SMPP server: %w", err)
 	}
-	s.log.Printf("SMPP server %d started on %s", s.port)
+	// s.log.Printf("SMPP server %d started on %s", s.port)
 	s.listener = listener
 	return nil
 }