remove unused DIVMOD builtin

builtins.go

@@ -258,23 +258,6 @@ func (b *Builtins) Mod(s *Stack) func() error {
 	}
 }
 
-// DivMod performs NOS/TOS & NOS%TOS and pushes the (integer!) results: TOS as quotient, NOS as remainder
-func (b *Builtins) DivMod(s *Stack) func() error {
-	return func() error {
-		tos, err := s.Pop()
-		if err != nil {
-			return err
-		}
-		nos, err := s.Pop()
-		if err != nil {
-			return err
-		}
-		s.Push(nos % tos)
-		s.Push(nos / tos)
-		return nil
-	}
-}
-
 // Print pops the stack and outputs it to the writer with a trailing space (defaults to stdout)
 func (b *Builtins) Print(out io.Writer, s *Stack) func() error {
 	if out == nil {