refactoring: Use flake-inputs instead of awkwardly passing through

lib/default.nix

@@ -1,9 +1,4 @@
-{
-  lib,
-  nixpkgs,
-  sops-nix,
-  tlaternet-webserver,
-}: let
+{lib}: let
   inherit (lib.attrsets) mapAttrsToList;
   inherit (lib.strings) concatStringsSep;
 in {
@@ -12,19 +7,4 @@ in {
     (mapAttrsToList
       (host: vm: "hostfwd=::${host}-:${vm}")
       portMapping);
-
-  makeNixosSystem = {
-    system,
-    extraModules,
-  }:
-    nixpkgs.lib.nixosSystem {
-      inherit system;
-      modules =
-        [
-          sops-nix.nixosModules.sops
-          tlaternet-webserver.nixosModules.default
-          (import ../configuration)
-        ]
-        ++ extraModules;
-    };
 }