fixup! Show import tree provenance

Author: geekosaur

cabal-install/src/Distribution/Client/ProjectConfig/Legacy.hs

@@ -171,7 +171,6 @@ import Distribution.System (Arch, OS)
 import Distribution.Types.PackageVersionConstraint
   ( PackageVersionConstraint
   )
-import Distribution.Utils.Path
 
 import qualified Data.ByteString.Char8 as BS
 import qualified Data.Map as Map
@@ -190,8 +189,6 @@ import Distribution.Fields.ConfVar (parseConditionConfVarFromClause)
 
 import Distribution.Client.HttpUtils
 import Distribution.Client.ReplFlags (multiReplOption)
-import System.Directory (createDirectoryIfMissing)
-import System.FilePath (isAbsolute, isPathSeparator, makeValid, takeDirectory, (</>))
 
 ------------------------------------------------------------------
 -- Handle extended project config files with conditionals and imports.