remove Clone() and EmptyClone() methods from NCurses::Window and derives

these functions served no purpose.

src/menu.h

@@ -180,9 +180,6 @@ namespace NCurses
 			const T &operator[](size_t i) const;
 			T &operator[](size_t i);
 		
-			virtual Menu<T> *Clone() const { return new Menu<T>(*this); }
-			virtual Menu<T> *EmptyClone() const;
-		
 		protected:
 			void ClearFiltered();
 			
@@ -797,10 +794,5 @@ template <typename T> T &NCurses::Menu<T>::operator[](size_t i)
 	return (*itsOptionsPtr)[i]->Item;
 }
 
-template <typename T> NCurses::Menu<T> *NCurses::Menu<T>::EmptyClone() const
-{
-	return new NCurses::Menu<T>(GetStartX(), GetStartY(), GetWidth(), GetHeight(), itsTitle, itsBaseColor, itsBorder);
-}
-
 #endif
 

src/scrollpad.cpp

@@ -215,8 +215,3 @@ Scrollpad &Scrollpad::operator<<(const std::string &s)
 }
 #endif // _UTF8
 
-Scrollpad *Scrollpad::EmptyClone() const
-{
-	return new Scrollpad(GetStartX(), GetStartY(), GetWidth(), GetHeight(), itsTitle, itsBaseColor, itsBorder);
-}
-

src/scrollpad.h

@@ -58,9 +58,6 @@ namespace NCurses
 			Scrollpad &operator<<(const std::string &s);
 #			endif // _UTF8
 			
-			virtual Scrollpad *Clone() const { return new Scrollpad(*this); }
-			virtual Scrollpad *EmptyClone() const;
-			
 		protected:
 			virtual void Recreate();
 			

src/window.cpp

@@ -827,11 +827,6 @@ Window &Window::operator<<(size_t s)
 	return *this;
 }
 
-Window * Window::EmptyClone() const
-{
-	return new Window(GetStartX(), GetStartY(), GetWidth(), GetHeight(), itsTitle, itsBaseColor, itsBorder);
-}
-
 std::string ToString(const std::wstring &ws)
 {
 	std::string result;

src/window.h

@@ -434,9 +434,6 @@ namespace NCurses
 			///
 			Window &operator<<(const std::wstring &ws);
 			
-			virtual Window *Clone() const { return new Window(*this); }
-			virtual Window *EmptyClone() const;
-			
 			/// Fallback for Length() for wide strings used if unicode support is disabled
 			/// @param s string that real length has to be measured
 			/// @return standard std::string::length() result since it's only fallback