Method _unlinkChildWidget

MyGUIEngine/src/MyGUI_Widget.cpp:1111–1116

	}

	void Widget::_unlinkChildWidget(Widget* _widget)
	{
		VectorWidgetPtr::iterator iter = std::remove(mWidgetChild.begin(), mWidgetChild.end(), _widget);
		MYGUI_ASSERT(iter != mWidgetChild.end(), "widget not found");
		mWidgetChild.erase(iter);
	}

	void Widget::shutdownOverride()
	{