menu: removed unused function

Hold-over from 0.1, we have better ways of achieving this now.

app/widget/menu/menu.cpp

@@ -100,14 +100,6 @@ void Menu::ConformItem(QAction *a, const QString &id, const QString &key)
   }
 }
 
-void Menu::SetBooleanAction(QAction *a, bool* boolean)
-{
-  // FIXME: Connect to some boolean function
-  a->setCheckable(true);
-  a->setChecked(*boolean);
-  a->setProperty("boolptr", reinterpret_cast<quintptr>(boolean));
-}
-
 void Menu::Init()
 {
   // HACK: Disables embossing on disabled text for a slightly nicer UI

app/widget/menu/menu.h

@@ -226,8 +226,6 @@ public:
                           const QString& id,
                           const QString& key = QString());
 
-  static void SetBooleanAction(QAction* a, bool *boolean);
-
 private:
   void Init();