Avoid building HIE twice

cabal install works different than cabal build
and does not re-use its artifacts. Even some
dependencies may be rebuilt.

Future cabal versions may fix that, we don't know.

install/src/HieInstall.hs

@@ -122,7 +122,6 @@ defaultMain = do
       (\version -> phony ("cabal-hie-" ++ version) $ do
         need ["submodules"]
         need ["cabal"]
-        cabalBuildHie version
         cabalInstallHie version
       )