remove method calls that update drawing from on_stage_change_setup

Author: soheilshahrouz

vpr/src/draw/draw.cpp

@@ -242,7 +242,6 @@ static void draw_main_canvas(ezgl::renderer* g) {
 }
 
 static void on_stage_change_setup(ezgl::application* app, bool is_new_window) {
-
     // default setup for new window
     if (is_new_window) {
         basic_button_setup(app);
@@ -271,10 +270,6 @@ static void on_stage_change_setup(ezgl::application* app, bool is_new_window) {
     hide_crit_path_routing(app);
 
     hide_draw_routing(app);
-
-    app->update_message(draw_state->default_message);
-    app->refresh_drawing();
-    app->flush_drawing();
 }
 
 #endif //NO_GRAPHICS