Enable Unused LANGUAGE pragma hint for HLint.

.hlint.yaml

@@ -16,7 +16,6 @@
 - ignore: {name: "Fuse foldr/map"} # 1 hint
 - ignore: {name: "Move brackets to avoid $"} # 8 hints
 - ignore: {name: "Redundant ^."} # 2 hints
-- ignore: {name: "Unused LANGUAGE pragma"} # 11 hints
 - ignore: {name: "Use :"} # 2 hints
 - ignore: {name: "Use <$"} # 1 hint
 - ignore: {name: "Use <$>"} # 1 hint

proto-lens-protoc/app/Data/ProtoLens/Compiler/Editions/Defaults.hs

@@ -4,8 +4,6 @@
 -- license that can be found in the LICENSE file or at
 -- https://developers.google.com/open-source/licenses/bsd
 
-{-# LANGUAGE OverloadedLabels #-}
-
 {-|
 Module: Data.ProtoLens.Compiler.Editions.Defaults
 Description: Exports defaults for native features in Protobuf Editions.

proto-lens-protoc/app/Data/ProtoLens/Compiler/Generate/Encoding.hs

@@ -3,7 +3,6 @@
 -- Upstream docs: <https://developers.google.com/protocol-buffers/docs/encoding>
 {-# LANGUAGE CPP #-}
 {-# LANGUAGE DeriveFunctor #-}
-{-# LANGUAGE LambdaCase #-}
 {-# LANGUAGE NoMonomorphismRestriction #-}
 {-# LANGUAGE OverloadedLabels #-}
 {-# LANGUAGE OverloadedStrings #-}

proto-lens-protoc/app/Data/ProtoLens/Compiler/Plugin.hs

@@ -8,7 +8,6 @@
 
 {-# LANGUAGE CPP #-}
 {-# LANGUAGE OverloadedLabels #-}
-{-# LANGUAGE OverloadedStrings #-}
 module Data.ProtoLens.Compiler.Plugin
     ( ProtoFileName
     , ProtoFile(..)

proto-lens-protoc/app/protoc-gen-haskell.hs

@@ -7,7 +7,6 @@
 {-# LANGUAGE CPP #-}
 {-# LANGUAGE OverloadedLabels #-}
 {-# LANGUAGE OverloadedStrings #-}
-{-# LANGUAGE PatternSynonyms #-}
 module Main where
 
 import Control.Monad.IO.Class (liftIO)

proto-lens-setup/src/Data/ProtoLens/Setup.hs

@@ -14,7 +14,6 @@
 --
 -- See @README.md@ for instructions on how to use proto-lens with Cabal.
 {-# LANGUAGE CPP #-}
-{-# LANGUAGE BangPatterns #-}
 module Data.ProtoLens.Setup
     ( defaultMainGeneratingProtos
     , defaultMainGeneratingSpecificProtos

proto-lens-tutorial/coffee-order/src/Main.hs

@@ -1,7 +1,5 @@
-{-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE OverloadedLabels           #-}
 {-# LANGUAGE OverloadedStrings          #-}
-{-# LANGUAGE TypeApplications           #-}
 
 module Main where
 

proto-lens/src/Data/ProtoLens/Encoding/Bytes.hs

@@ -6,7 +6,6 @@
 
 {-# LANGUAGE BangPatterns #-}
 {-# LANGUAGE CPP #-}
-{-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE LambdaCase #-}

proto-lens/src/Data/ProtoLens/Encoding/Parser.hs

@@ -1,6 +1,4 @@
 -- | A custom parsing monad, optimized for speed.
-{-# LANGUAGE BangPatterns #-}
-{-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 module Data.ProtoLens.Encoding.Parser

proto-lens/src/Data/ProtoLens/Field.hs

@@ -17,7 +17,6 @@ For more information, see <https://google.github.io/proto-lens/tutorial.html#fie
 {-# LANGUAGE FunctionalDependencies #-}
 {-# LANGUAGE KindSignatures #-}
 {-# LANGUAGE MagicHash #-}
-{-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE UndecidableInstances #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 module Data.ProtoLens.Field

proto-lens/src/Data/ProtoLens/Service/Types.hs

@@ -3,7 +3,6 @@
 {-# LANGUAGE FlexibleContexts      #-}
 {-# LANGUAGE FlexibleInstances     #-}
 {-# LANGUAGE GADTs                 #-}
-{-# LANGUAGE KindSignatures        #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE PolyKinds             #-}
 {-# LANGUAGE RankNTypes            #-}