chore: remove unused vpn module

hosts/astyanax/default.nix

@@ -36,7 +36,6 @@ in
     ../../modules/fonts
     ../../modules/ssh/hardened-openssh.nix
     ../../modules/stylix
-    # ../../modules/vpn/wireguard.nix
     (import ../../modules/secrets { inherit lib inputs config; })
     ../../modules/docker
     ../../modules/syncthing