removed more dead code

src/compiler/GF/Data/Operations.hs

@@ -247,42 +247,6 @@ chunks sep ws = case span (/= sep) ws of
 readIntArg :: String -> Int
 readIntArg n = if (not (null n) && all isDigit n) then read n else 0
 
-{-
--- state monad with error; from Agda 6/11/2001
-
-newtype STM s a = STM (s -> Err (a,s)) 
-
-appSTM :: STM s a -> s -> Err (a,s)
-appSTM (STM f) s = f s
-
-stm :: (s -> Err (a,s)) -> STM s a
-stm = STM
-
-stmr :: (s -> (a,s)) -> STM s a
-stmr f = stm (\s -> return (f s))
-
-instance Functor (STM s) where fmap = liftM
-
-instance Applicative (STM s) where
-  pure = return
-  (<*>) = ap
-
-instance  Monad (STM s) where
-  return a    = STM (\s -> return (a,s))
-  STM c >>= f = STM (\s -> do 
-                        (x,s') <- c s
-                        let STM f' = f x
-                        f' s')
-
-readSTM :: STM s s
-readSTM = stmr (\s -> (s,s))
-
-updateSTM :: (s -> s) -> STM s () 
-updateSTM f = stmr (\s -> ((),f s))
-
-writeSTM :: s -> STM s ()
-writeSTM s = stmr (const ((),s))
--}
 -- | @return ()@
 done :: Monad m => m ()
 done = return ()