nixos: gitit, wrong type restriction redacted

nixos/modules/services/misc/gitit.nix

···
       };
 
       haskellPackages = mkOption {
-        type = types.attrsOf types.package;
         default = pkgs.haskellPackages;
         defaultText = "pkgs.haskellPackages";
         example = literalExample "pkgs.haskell.packages.ghc784";