Some more slight cleanup.

svn-id: r46314

graphics/cursorman.cpp

@@ -31,11 +31,6 @@ DECLARE_SINGLETON(Graphics::CursorManager);
 
 namespace Graphics {
 
-CursorManager::CursorManager() {
-	_cursorStack.clear();
-	_cursorPaletteStack.clear();
-}
-
 bool CursorManager::isVisible() {
 	if (_cursorStack.empty())
 		return false;

graphics/cursorman.h

@@ -164,7 +164,10 @@ public:
 
 private:
 	friend class Common::Singleton<SingletonBaseType>;
-	CursorManager();
+	// Even though this is basically the default constructor we implement it
+	// ourselves, so it is private and thus there is no way to create this class
+	// except from the Singleton code.
+	CursorManager() {}
 
 	struct Cursor {
 		byte *_data;