Fix calling gtk_main_quit() twice
It's already done by wrapper-2.0, no need to do it in our implementation.
This fixes error message when removing the plugin: Gtk-CRITICAL **: gtk_main_quit: assertion 'main_loops != NULL' failed
It's already done by wrapper-2.0, no need to do it in our implementation.
This fixes error message when removing the plugin: Gtk-CRITICAL **: gtk_main_quit: assertion 'main_loops != NULL' failed