vanadium: move language servers back to home configuration

nix/configurations/vanadium/home/dev.nix

@@ -9,6 +9,18 @@
     pkgs.python3Packages.grip
   ];
 
+  programs.neovim.extraPackages = [
+    pkgs.lua-language-server
+    pkgs.stylua                  # lua
+    pkgs.nil                     # nix
+    pkgs.fish-lsp                # fish
+    pkgs.pyright                 # python
+    pkgs.marksman                # markdown
+    pkgs.taplo                   # toml
+    pkgs.vscode-langservers-extracted # JSON etc
+    pkgs.yaml-language-server    # yaml
+  ];
+
   programs.git = {
     enable = true;
     signing.signByDefault = true;

nix/environments/language-servers.nix

@@ -1,31 +0,0 @@
-{
-  buildEnv,
-  #
-  pkgs,
-}:
-buildEnv {
-  name = "language-servers";
-  paths = [
-    # lua
-    pkgs.lua-language-server
-    pkgs.stylua
-
-    pkgs.nil # nix
-    pkgs.yaml-language-server # yaml
-
-    pkgs.pyright # python
-
-    pkgs.marksman # markdown
-    pkgs.taplo # toml
-    pkgs.lemminx # xml
-    # pkgs.texlab # latex
-
-    pkgs.vscode-langservers-extracted # JSON etc
-
-    # fish
-    pkgs.fish-lsp
-
-    # spellchecking
-    pkgs.myPkgs.ltex-ls-plus
-  ];
-}