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-rw-r--r--src/runtime/haskell/PGF/Optimize.hs1
1 files changed, 0 insertions, 1 deletions
diff --git a/src/runtime/haskell/PGF/Optimize.hs b/src/runtime/haskell/PGF/Optimize.hs
index f7fb79779..833684fe0 100644
--- a/src/runtime/haskell/PGF/Optimize.hs
+++ b/src/runtime/haskell/PGF/Optimize.hs
@@ -20,7 +20,6 @@ import qualified Data.IntMap as IntMap
import qualified GF.Data.TrieMap as TrieMap
import qualified Data.List as List
import Control.Monad.ST
-import GF.Data.Utilities(sortNub)
optimizePGF :: PGF -> PGF
optimizePGF pgf = pgf{concretes=fmap (updateConcrete (abstract pgf) .