🔥 Remove leftover lib methods and TODO

lib/module/default.nix

···
 {
   lib,
-  self,
   ...
 }:
 {
···
       inherit default description;
       type = lib.types.bool;
     };
-
-  # Create a module compliant with the NixOS module system.
-  mkModule =
-    {
-      name ? "puzzlevision",
-      class,
-      modules,
-    }:
-    {
-      _class = class;
-      # Template: "[path-to-flake]/flake.nix#[class-name]Modules.[module-name]"
-      # Example: "[path-to-flake]/flake.nix#nixosModules.system.audio"
-      _file = "${self.outPath}/flake.nix#${class}Modules.${name}";
-      imports = modules;
-    };
-
-  # TODO: add mkIfElse function
 }