[test][zts] fix tests [4]

src/server/master.cc

@@ -729,6 +729,7 @@ Server::Server(enum Mode _mode) {
  gs->max_concurrency = UINT_MAX;
 
  message_bus.set_id_generator([this]() { return sw_atomic_fetch_add(&gs->pipe_packet_msg_id, 1); });
+ worker_thread_start = [](const WorkerFn &fn) { fn(); };
 
  g_server_instance = this;
 }

src/server/thread.cc

@@ -29,7 +29,6 @@ Factory *Server::create_thread_factory() {
  }
  reactor_threads = new ReactorThread[reactor_num]();
  reactor_pipe_num = 1;
- worker_thread_start = [](const WorkerFn &fn) { fn(); };
  return new ThreadFactory(this);
 }