config: remove nix-alien flake input

The latest update failed and that reminded me I mostly use steam-run now
which is more reliable and becoming my go-to tool for running unpatched
binaries in NixOS.

flake.lock

@@ -426,29 +426,6 @@
         "type": "github"
       }
     },
-    "nix-alien": {
-      "inputs": {
-        "flake-utils": [
-          "flake-utils"
-        ],
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1673796649,
-        "narHash": "sha256-pxltEWBYl0LrowAn+66vbqJe59EPJ+fmLKMVZ66EIZI=",
-        "owner": "thiagokokada",
-        "repo": "nix-alien",
-        "rev": "998aa8523cde352da0529fcc495cd5709a1eeb98",
-        "type": "github"
-      },
-      "original": {
-        "owner": "thiagokokada",
-        "repo": "nix-alien",
-        "type": "github"
-      }
-    },
     "nix-colors": {
       "inputs": {
         "base16-schemes": "base16-schemes",
@@ -664,7 +641,6 @@
         "helix-editor": "helix-editor",
         "home-manager": "home-manager",
         "neovim-nightly-overlay": "neovim-nightly-overlay",
-        "nix-alien": "nix-alien",
         "nix-colors": "nix-colors",
         "nix-ld": "nix-ld",
         "nixos-generators": "nixos-generators",

flake.nix

@@ -33,9 +33,6 @@
     # Running unpatched binaries on NixOS! :O
     nix-ld.url = "github:Mic92/nix-ld";
     nix-ld.inputs.nixpkgs.follows = "nixpkgs";
-    nix-alien.url = "github:thiagokokada/nix-alien";
-    nix-alien.inputs.nixpkgs.follows = "nixpkgs";
-    nix-alien.inputs.flake-utils.follows = "flake-utils";
 
     # Generate your NixOS systems to various formats!
     nixos-generators.url = "github:nix-community/nixos-generators";
@@ -97,9 +94,6 @@
 
         # Access to NUR.
         inputs.nur.overlay
-
-        # Running unpatched binaries in NixOS?!!
-        inputs.nix-alien.overlays.default
       ];
 
       defaultSystem = inputs.flake-utils.lib.system.x86_64-linux;

modules/nixos/profiles/desktop.nix

@@ -66,9 +66,7 @@ in {
       # Run unpatched binaries with these!
       programs.nix-ld.enable = true;
       environment.systemPackages = with pkgs; [
-        nix-alien # Ambassador for the pre-compiled binaries.
         nix-index # locate but for the entire store directory.
-        nix-index-update # If you don't want to rebuild the entire thing and have the chance for the operation to slow down to the point of freezing then here's your chance.
         steam-run # For the heathens that still uses FHS.
       ];