Fixed switching add button off on mirror window

source/ubl-settings-update.c

@@ -1674,10 +1674,8 @@ mirror_configure_window *yon_mirror_configure_window_new(){
 void on_mirror_type_changed(GtkComboBox *self, mirror_add_window *window){
     int active = gtk_combo_box_get_active(self);
     if (active == 2){
-        gtk_widget_set_sensitive(window->AddButton,1);
         gtk_widget_set_sensitive(window->TypeButton,1);
     } else {
-        gtk_widget_set_sensitive(window->AddButton,0);
         gtk_widget_set_sensitive(window->TypeButton,0);
     }
 }