Var: LANGUAGE: rm Derive{Foldable,Functor,Traversable}

Author: Anton-Latukha

src/Nix/Var.hs

@@ -1,8 +1,5 @@
 {-# LANGUAGE AllowAmbiguousTypes #-}
 {-# LANGUAGE ConstraintKinds #-}
-{-# LANGUAGE DeriveFoldable #-}
-{-# LANGUAGE DeriveFunctor #-}
-{-# LANGUAGE DeriveTraversable #-}
 {-# LANGUAGE FlexibleContexts #-}
 {-# LANGUAGE ScopedTypeVariables #-}