chore(3p): use haskell-language-server from nixpkgs r/2333

Upstream haskellPackages has a newer haskell-language-server than we had
and it is always in sync with the default GHC version of that package
set which we incidentally use to build all haskell derivations in depot.

I hope this will not cause us more trouble in the future, but I've
gotten the impression that maralorn makes an effort to prevent
haskell-language-server from being broken in haskellPackages, so ideally
we'll never have to worry about hls again. If we do have to, we may need
to switch to easy-hls-nix.

Note that I haven't had the time yet to verify that the shells actually
work since it's kinda late now and the rebuilds are many.

Change-Id: I74c192d57355904cfa45bb76d70346792ba05af5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2662
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>

1 files changed, 1 insertions, 2 deletions

diff --git a/users/glittershark/owothia/shell.nix b/users/glittershark/owothia/shell.nix
index 4a89fa0a5d..1ad70c907b 100644
--- a/users/glittershark/owothia/shell.nix
+++ b/users/glittershark/owothia/shell.nix
@@ -17,7 +17,6 @@ in
   buildInputs = with haskellPackages; [
     cabal-install
     hlint
-    # TODO(sterni): versions out of sync
-    # pkgs.haskell-language-server.ghc884
+    haskell-language-server
   ];
 }