Remove the unused module Distribution.Client.Clean

cabal-install/Distribution/Client/Clean.hs

------------------------------------------------------------------------------
--- |
--- Module      :  Distribution.Client.Clean
--- Copyright   :  (c) David Himmelstrup 2005
--- License     :  BSD-like
---
--- Maintainer  :  lemmih@gmail.com
--- Stability   :  provisional
--- Portability :  portable
---
--- 
------------------------------------------------------------------------------
-module Distribution.Client.Clean
-    ( clean
-    ) where
-
-import Distribution.Client.Types (ConfigFlags(..))
-import Distribution.Client.Utils (fileNotFoundExceptions)
-
-import System.Directory (removeDirectoryRecursive)
-import Control.Exception (catchJust)
-
--- | 'clean' removes all downloaded packages from the {config-dir}\/packages\/ directory.
-clean :: ConfigFlags -> IO ()
-clean cfg
-    = catchJust fileNotFoundExceptions
-        (removeDirectoryRecursive (configCacheDir cfg))
-        -- The packages dir may not exist if it's already cleaned:
-        (const (return ()))

cabal-install/cabal-install.cabal

@@ -37,7 +37,6 @@ Executable cabal
     Ghc-Options:        -Wall -fno-ignore-asserts
     Other-Modules:
         Distribution.Client.Check
---        Distribution.Client.Clean
         Distribution.Client.Config
         Distribution.Client.Dependency
         Distribution.Client.Dependency.Bogus