Simplify: Git hooks via nix flake check (no systemd, no activation, deleted module)

hosts/vm/default.nix

@@ -29,13 +29,8 @@ in
     (import ../../modules/secrets {
       inherit lib inputs config;
     })
-    ../../modules/git-hooks
   ];
 
-  services.git-hooks = {
-    enable = true;
-  };
-
   home-manager.users.${username} = import ../../home/hosts/vm {
     inherit inputs config pkgs;
   };