[get ride of unused ExportStatus type
John Meacham <john@repetae.net>**20060411000409] hunk ./Info/Binary.hs 29
-    cb (u :: ExportStatus),
hunk ./Info/Types.hs 25
-
--- | whether the variable is exported from the current module
-data ExportStatus = Exported
-    deriving(Typeable,Show,Ord,Eq)
-
-instance Binary ExportStatus where
-    put_ _ _ = return ()
-    get _ = return Exported
-