Sort out some module import warnings

haddock-api/src/Haddock/Convert.hs

@@ -23,7 +23,6 @@ import CoAxiom
 import ConLike
 import Data.Either (lefts, rights)
 import Data.List( partition )
-import Data.Monoid (mempty)
 import DataCon
 import FamInstEnv
 import Haddock.Types

haddock-api/src/Haddock/Interface/Rename.hs

@@ -13,7 +13,7 @@
 module Haddock.Interface.Rename (renameInterface) where
 
 
-import Data.Traversable (traverse, Traversable)
+import Data.Traversable (mapM)
 
 import Haddock.GhcUtils
 import Haddock.Types
@@ -28,7 +28,6 @@ import Control.Applicative
 import Control.Monad hiding (mapM)
 import Data.List
 import qualified Data.Map as Map hiding ( Map )
-import Data.Traversable (mapM)
 import Prelude hiding (mapM)
 
 

haddock-api/src/Haddock/Types.hs

@@ -34,7 +34,6 @@ import GHC hiding (NoLink)
 import DynFlags (ExtensionFlag, Language)
 import OccName
 import Outputable
-import Control.Applicative (Applicative(..))
 import Control.Monad (ap)
 
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