remove dead code (run deadnix)

modules/firewall/default.nix

@@ -8,7 +8,6 @@
 let
   inherit (lib) mkOption types;
   inherit (pkgs) liminix;
-  inherit (pkgs.liminix.services) oneshot;
 
   kmodules = pkgs.kmodloader.override {
     inherit (config.system.outputs) kernel;

modules/firewall/service.nix

@@ -7,8 +7,6 @@
 { rules, extraRules }:
 let
   inherit (liminix.services) oneshot;
-  inherit (liminix.lib) typeChecked;
-  inherit (lib) mkOption types;
   script = firewallgen "firewall.nft" (lib.recursiveUpdate rules extraRules);
 in oneshot {
   name = "firewall";