GUI2/Menu Button: removed unused member

Probably became unused once certain toggle functionality was split off into the multimenu button

src/gui/widgets/menu_button.cpp

@@ -45,7 +45,6 @@ menu_button::menu_button(const implementation::builder_menu_button& builder)
 	, values_()
 	, selected_()
 	, keep_open_(false)
-	, droplist_(nullptr)
 {
 	values_.emplace_back(::config {"label", this->get_label()});
 
@@ -135,11 +134,7 @@ void menu_button::signal_handler_left_button_click(const event::ui_event event,
 	dialogs::drop_down_menu droplist(this->get_rectangle(), this->values_, this->selected_, this->get_use_markup(), this->keep_open_,
 		nullptr);
 
-	droplist_ = &droplist;
-
 	if(droplist.show(get_window()->video())) {
-		droplist_ = nullptr;
-
 		const int selected = droplist.selected_item();
 
 		// Safety check. If the user clicks a selection in the dropdown and moves their mouse away too
@@ -158,8 +153,6 @@ void menu_button::signal_handler_left_button_click(const event::ui_event event,
 		}
 	}
 
-	droplist_ = nullptr;
-
 	handled = true;
 }
 

src/gui/widgets/menu_button.hpp

@@ -134,8 +134,6 @@ class menu_button : public styled_widget, public selectable_item
 
 	bool keep_open_;
 
-	dialogs::drop_down_menu* droplist_;
-
 	/** Inherited from styled_widget, implemented by REGISTER_WIDGET. */
 	virtual const std::string& get_control_type() const override;