remove grammars from nix build

flake.nix

@@ -24,40 +24,12 @@
           # link languages and theme toml files since helix-core/helix-view expects them
           helix-core = _: { preConfigure = "ln -s ${common.root}/{languages.toml,theme.toml,base16_theme.toml} .."; };
           helix-view = _: { preConfigure = "ln -s ${common.root}/{languages.toml,theme.toml,base16_theme.toml} .."; };
-          helix-syntax = prev: {
-            src =
-              let
-                pkgs = common.pkgs;
-                helix = pkgs.fetchgit {
-                  url = "https://github.com/helix-editor/helix.git";
-                  rev = "a8fd33ac012a79069ef1409503a2edcf3a585153";
-                  fetchSubmodules = true;
-                  sha256 = "sha256-5AtOC55ttWT+7RYMboaFxpGZML51ix93wAkYJTt+8JI=";
-                };
-              in
-              pkgs.runCommand prev.src.name { } ''
-                mkdir -p $out
-                ln -s ${prev.src}/* $out
-                ln -sf ${helix}/helix-syntax/languages $out
-              '';
-            preConfigure = "mkdir -p ../runtime/grammars";
-            postInstall = "cp -r ../runtime $out/runtime";
-          };
           helix-term = prev:
             let
               inherit (common) pkgs lib;
-              helixSyntax = lib.buildCrate {
-                root = self;
-                memberName = "helix-syntax";
-                defaultCrateOverrides = {
-                  helix-syntax = helix-syntax;
-                };
-                release = false;
-              };
               runtimeDir = pkgs.runCommand "helix-runtime" { } ''
                 mkdir -p $out
                 ln -s ${common.root}/runtime/* $out
-                ln -sf ${helixSyntax}/runtime/grammars $out
               '';
             in
             {