quick check with linters

src/graphics/ui/gui_util.hpp

@@ -1,27 +1,14 @@
 #ifndef FRONTEND_GUI_GUI_UTIL_HPP_
 #define FRONTEND_GUI_GUI_UTIL_HPP_
 
-#include <memory>
-#include <string>
 #include "GUI.hpp"
 #include "../../typedefs.hpp"
 #include "../../delegates.hpp"
 
-namespace gui {
-    class Button;
-}
+#include <memory>
+#include <string>
 
 namespace guiutil {
-    std::shared_ptr<gui::Button> backButton(
-        std::shared_ptr<gui::Menu> menu
-    );
-
-    std::shared_ptr<gui::Button> gotoButton(
-        std::wstring text, 
-        const std::string& page, 
-        std::shared_ptr<gui::Menu> menu
-    );
-
     /// @brief Create element from XML
     /// @param source XML
     std::shared_ptr<gui::UINode> create(const std::string& source, scriptenv env=0);