Cleanup nixos

config/cachix.nix

@@ -1,2 +0,0 @@
-{
-}

flake.nix

@@ -1,22 +0,0 @@
-{
-  description = "Immutable NixOS dotfiles.";
-
-  inputs = {
-    nixpkgs.url = "nixpkgs/nixos-unstable";
-    nixpkgs-unstable.url = "nixpgs/master";
-    emacs-overlay.url = "github:nix-comunity/emacs-overlay";
-    nixos-hardwre.url = "github:nixos/nixos-hardware";
-  };
-
-  outputs = inputs @ { self, nixpkgs, ... }: {
-    nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
-      system = "x86_64-linux";
-      specialArgs = { inherit inputs; };
-      modules = [
-        ./hosts/nixos/configuration.nix
-        ./hosts/nixos/hardware.nix
-        ./config/cachix.nix
-      ];
-    };
-  };
-}

hosts/nixos/configuration.nix

@@ -1,18 +0,0 @@
-{ pkgs, ... }:
-
-{
-  nix = {
-    package = pkgs.nixUnstable;
-    extraOptions = ''
-      experimental-features = nix-command flakes
-    '';
-  };
-
-  nixpkgs = {
-    config = { allowUnfree = true; };
-    overlays = [ ];
-  };
-
-  # ...
-
-}