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-rw-r--r--compiler/GHC/Cmm/Dataflow/Collections.hs4
1 files changed, 1 insertions, 3 deletions
diff --git a/compiler/GHC/Cmm/Dataflow/Collections.hs b/compiler/GHC/Cmm/Dataflow/Collections.hs
index 1fb8f5d52c..a7aa2716c9 100644
--- a/compiler/GHC/Cmm/Dataflow/Collections.hs
+++ b/compiler/GHC/Cmm/Dataflow/Collections.hs
@@ -1,8 +1,6 @@
-{-# LANGUAGE DeriveFunctor #-}
{-# LANGUAGE DeriveTraversable #-}
-{-# LANGUAGE DeriveFoldable #-}
-{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE TypeFamilies #-}
module GHC.Cmm.Dataflow.Collections
( IsSet(..)