remove all async_start/end calls

src/node_panel_grid.cpp

@@ -78,7 +78,6 @@ void NodePanelGrid::init_controls()
     m_hm_load->on_click = [this](Node*) {
         App::I.pick_image([this](std::string path) {
             Image img;
-            async_start();
             if (img.load_file(path))
             {
                 m_file_path = path;
@@ -93,8 +92,6 @@ void NodePanelGrid::init_controls()
                     m_groud_opacity->set_value(1.f);
                 m_rt_dirty = true;
             }
-            async_update();
-            async_end();
         });
     };
 
@@ -380,7 +377,6 @@ void NodePanelGrid::bake_uvs()
     pb->m_progress->SetWidthP(0);
     pb->m_title->set_text("Lightmap Rendering");
     pb->btn_cancel->destroy();
-    async_update();
 
     if (m_rt_dirty)
     {
@@ -462,7 +458,6 @@ void NodePanelGrid::bake_uvs()
     while (pb_value < fb.getHeight())
     {
         pb->m_progress->SetWidthP((float)pb_value / (float)fb.getHeight() * 100.f);
-        async_update();
         std::this_thread::sleep_for(std::chrono::milliseconds(100));
     }
     worker.join();