fix system.filepath imports in types.hs

Author: emilypi

cabal-install/src/Distribution/Client/Init/Types.hs

@@ -70,8 +70,6 @@ import Language.Haskell.Extension ( Language(..), Extension )
 import qualified System.Directory as P
 import qualified System.Process as P
 import qualified Distribution.Compat.Environment as P
-import System.FilePath (takeExtension)
-import System.FilePath.Posix (dropExtension)
 import System.FilePath