remove the Print front window stuff: it crashes

Fltk/FlGui.cpp

@@ -232,6 +232,7 @@ FlGui::FlGui(int argc, char **argv)
 
   // add callback to respond to Mac Finder
 #if defined(__APPLE__)
+  Fl_Mac_App_Menu::print = ""; // remove this: it crashes
   fl_open_callback(OpenProjectMacFinder);
   fl_mac_set_about(help_about_cb, 0);
 #endif