Removed unused extensions (#4506)

10 files changed, 16 insertions, 28 deletions

diff --git a/src/Text/Pandoc/Readers.hs b/src/Text/Pandoc/Readers.hs
index 4eff11c41..680e7e0b0 100644
--- a/src/Text/Pandoc/Readers.hs
+++ b/src/Text/Pandoc/Readers.hs
@@ -1,7 +1,7 @@
-{-# LANGUAGE NoImplicitPrelude #-}
-{-# LANGUAGE FlexibleInstances   #-}
-{-# LANGUAGE GADTs               #-}
+{-# LANGUAGE MonoLocalBinds      #-}
+{-# LANGUAGE NoImplicitPrelude   #-}
 {-# LANGUAGE ScopedTypeVariables #-}
+
 {-
 Copyright (C) 2006-2018 John MacFarlane <jgm@berkeley.edu>
 
diff --git a/src/Text/Pandoc/Readers/DocBook.hs b/src/Text/Pandoc/Readers/DocBook.hs
index 7789e3867..6bc4584c2 100644
--- a/src/Text/Pandoc/Readers/DocBook.hs
+++ b/src/Text/Pandoc/Readers/DocBook.hs
@@ -1,5 +1,4 @@
 {-# LANGUAGE NoImplicitPrelude #-}
-{-# LANGUAGE ExplicitForAll #-}
 module Text.Pandoc.Readers.DocBook ( readDocBook ) where
 import Prelude
 import Control.Monad.State.Strict
diff --git a/src/Text/Pandoc/Readers/EPUB.hs b/src/Text/Pandoc/Readers/EPUB.hs
index e77463fec..714468a8a 100644
--- a/src/Text/Pandoc/Readers/EPUB.hs
+++ b/src/Text/Pandoc/Readers/EPUB.hs
@@ -1,8 +1,7 @@
 {-# LANGUAGE NoImplicitPrelude #-}
-{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE TupleSections     #-}
+{-# LANGUAGE ViewPatterns      #-}
 
-{-# LANGUAGE TupleSections    #-}
-{-# LANGUAGE ViewPatterns     #-}
 
 module Text.Pandoc.Readers.EPUB
   (readEPUB)
diff --git a/src/Text/Pandoc/Readers/JATS.hs b/src/Text/Pandoc/Readers/JATS.hs
index b0a43ed06..29f23137c 100644
--- a/src/Text/Pandoc/Readers/JATS.hs
+++ b/src/Text/Pandoc/Readers/JATS.hs
@@ -1,5 +1,5 @@
 {-# LANGUAGE NoImplicitPrelude #-}
-{-# LANGUAGE ExplicitForAll, TupleSections #-}
+{-# LANGUAGE TupleSections #-}
 module Text.Pandoc.Readers.JATS ( readJATS ) where
 import Prelude
 import Control.Monad.State.Strict
diff --git a/src/Text/Pandoc/Readers/MediaWiki.hs b/src/Text/Pandoc/Readers/MediaWiki.hs
index 498f80216..764b57f18 100644
--- a/src/Text/Pandoc/Readers/MediaWiki.hs
+++ b/src/Text/Pandoc/Readers/MediaWiki.hs
@@ -1,7 +1,5 @@
 {-# LANGUAGE NoImplicitPrelude #-}
-{-# LANGUAGE FlexibleInstances    #-}
-{-# LANGUAGE RelaxedPolyRec       #-}
-{-# LANGUAGE TypeSynonymInstances #-}
+{-# LANGUAGE RelaxedPolyRec #-}
 -- RelaxedPolyRec needed for inlinesBetween on GHC < 7
 {-
   Copyright (C) 2012-2018 John MacFarlane <jgm@berkeley.edu>
diff --git a/src/Text/Pandoc/Readers/OPML.hs b/src/Text/Pandoc/Readers/OPML.hs
index 57bdc96da..3f4586295 100644
--- a/src/Text/Pandoc/Readers/OPML.hs
+++ b/src/Text/Pandoc/Readers/OPML.hs
@@ -1,5 +1,4 @@
 {-# LANGUAGE NoImplicitPrelude #-}
-{-# LANGUAGE FlexibleContexts #-}
 module Text.Pandoc.Readers.OPML ( readOPML ) where
 import Prelude
 import Control.Monad.State.Strict
diff --git a/src/Text/Pandoc/Readers/TWiki.hs b/src/Text/Pandoc/Readers/TWiki.hs
index fba7e133e..1f230ae7e 100644
--- a/src/Text/Pandoc/Readers/TWiki.hs
+++ b/src/Text/Pandoc/Readers/TWiki.hs
@@ -1,8 +1,7 @@
 {-# LANGUAGE NoImplicitPrelude #-}
-{-# LANGUAGE FlexibleContexts     #-}
-{-# LANGUAGE FlexibleInstances    #-}
-{-# LANGUAGE RelaxedPolyRec       #-}
-{-# LANGUAGE TypeSynonymInstances #-}
+{-# LANGUAGE FlexibleContexts  #-}
+{-# LANGUAGE RelaxedPolyRec    #-}
+
 -- RelaxedPolyRec needed for inlinesBetween on GHC < 7
 {-
   Copyright (C) 2014 Alexander Sulfrian <alexander.sulfrian@fu-berlin.de>
diff --git a/src/Text/Pandoc/Readers/TikiWiki.hs b/src/Text/Pandoc/Readers/TikiWiki.hs
index 55f53ef7f..9ba47d183 100644
--- a/src/Text/Pandoc/Readers/TikiWiki.hs
+++ b/src/Text/Pandoc/Readers/TikiWiki.hs
@@ -1,9 +1,7 @@
 {-# LANGUAGE NoImplicitPrelude #-}
-{-# LANGUAGE FlexibleContexts     #-}
-{-# LANGUAGE FlexibleInstances    #-}
-{-# LANGUAGE OverloadedStrings    #-}
-{-# LANGUAGE RelaxedPolyRec       #-}
-{-# LANGUAGE TypeSynonymInstances #-}
+{-# LANGUAGE FlexibleContexts  #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE RelaxedPolyRec    #-}
 
 {- |
    Module      : Text.Pandoc.Readers.TikiWiki
diff --git a/src/Text/Pandoc/Templates.hs b/src/Text/Pandoc/Templates.hs
index 6c3047263..80e2b1fa4 100644
--- a/src/Text/Pandoc/Templates.hs
+++ b/src/Text/Pandoc/Templates.hs
@@ -1,8 +1,4 @@
-{-# LANGUAGE NoImplicitPrelude #-}
-{-# LANGUAGE FlexibleInstances    #-}
-
-{-# LANGUAGE OverloadedStrings    #-}
-{-# LANGUAGE TypeSynonymInstances #-}
+{-# LANGUAGE OverloadedStrings #-}
 {-
 Copyright (C) 2009-2018 John MacFarlane <jgm@berkeley.edu>
 
diff --git a/src/Text/Pandoc/Writers/ICML.hs b/src/Text/Pandoc/Writers/ICML.hs
index a81ff96e3..266d58007 100644
--- a/src/Text/Pandoc/Writers/ICML.hs
+++ b/src/Text/Pandoc/Writers/ICML.hs
@@ -1,6 +1,6 @@
 {-# LANGUAGE NoImplicitPrelude #-}
-{-# LANGUAGE FlexibleContexts    #-}
-{-# LANGUAGE OverloadedStrings   #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 
 {- |