Revert "refactor: explicitly allow unfree packages"

This reverts commit 5131641023.

modules2/browsers/librewolf/extensions.nix

@@ -7,6 +7,7 @@
           awesome-rss
           bitwarden
           darkreader
+          onetab
           tree-style-tab
           ublock-origin
           videospeed

modules2/games/steam.nix

@@ -1,8 +1,3 @@
 {
-  nixpkgs.allowedUnfreePackages = [
-    "steam"
-    "steam-unwrapped"
-  ];
-
   flake.modules.nixos.pc.programs.steam.enable = true;
 }

modules2/hosts/t480/open-webui.nix

@@ -1,5 +1,3 @@
 {
-  nixpkgs.allowedUnfreePackages = [ "open-webui" ];
-
   flake.modules.nixos.pc.services.open-webui.enable = true;
 }

modules2/hosts/t480/slack.nix

@@ -1,9 +0,0 @@
-{
-  flake.modules.nixos."nixosConfigurations/t480" =
-    { config, pkgs, ... }:
-    {
-      nixpkgs.allowedUnfreePackages = [ "slack" ];
-
-      users.users."${config.flake.meta.owner.username}".packages = [ pkgs.slack ];
-    };
-}

modules2/hosts/t480/zoom.nix

@@ -1,9 +0,0 @@
-{
-  flake.modules.nixos."nixosConfigurations/t480" =
-    { config, pkgs, ... }:
-    {
-      nixpkgs.allowedUnfreePackages = [ "zoom-us" ];
-
-      users.users."${config.flake.meta.owner.username}".packages = [ pkgs.zoom-us ];
-    };
-}

modules2/makemkv.nix

@@ -1,8 +1,6 @@
 { config, ... }:
 
 {
-  nixpkgs.allowedUnfreePackages = [ "makemkv" ];
-
   flake.modules.nixos.pc =
     { pkgs, ... }:
     {

modules2/meta-output.nix

@@ -1,7 +0,0 @@
-{ lib, ... }:
-
-{
-  options.flake.meta = lib.mkOption {
-    type = lib.types.anything;
-  };
-}

modules2/unfree-packages.nix

@@ -1,26 +0,0 @@
-{ config, lib, ... }:
-
-{
-  options.nixpkgs.allowedUnfreePackages = lib.mkOption {
-    type = lib.types.listOf lib.types.str;
-    default = [ ];
-  };
-
-  config.flake = {
-    modules =
-      let
-        predicate = pkg: builtins.elem (lib.getName pkg) config.nixpkgs.allowedUnfreePackages;
-      in
-      {
-        nixos.pc.nixpkgs.config.allowUnfreePredicate = predicate;
-
-        homeManager.base = args: {
-          nixpkgs.config = lib.mkIf (!(args.hasGlobalPkgs or false)) {
-            allowUnfreePredicate = predicate;
-          };
-        };
-      };
-
-    meta.nixpkgs.allowedUnfreePackages = config.nixpkgs.allowedUnfreePackages;
-  };
-}

modules2/zsh/abbreviations/abbreviations.nix

@@ -1,8 +1,4 @@
 {
-  nixpkgs.allowedUnfreePackages = [
-    "zsh-abbr"
-  ];
-
   flake.modules.homeManager.base.programs.zsh.zsh-abbr.abbreviations = {
     cl = "clear";
     cs = "create-script";