Remove unused language extensions.

Patrick Thomson · Patrick Thomson · commit e9b0c4548f0e · 2019-06-04T11:32:45.000-04:00
diff --git a/semantic-core/src/Data/Core/Parser.hs b/semantic-core/src/Data/Core/Parser.hs
@@ -1,6 +1,3 @@
-{-# LANGUAGE ExplicitForAll, FlexibleInstances, LambdaCase, MultiParamTypeClasses, OverloadedLists,
-             ScopedTypeVariables #-}
-
 module Data.Core.Parser
   ( module Text.Trifecta
   , core
