Revert "Add installer image package"

This reverts commit 415d9e829f.

flake.nix

@@ -3,16 +3,11 @@
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
-    nixos-generators = {
-      url = "github:nix-community/nixos-generators";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
   };
 
   outputs = {
     self,
     nixpkgs,
-    nixos-generators,
   } @ inputs: let
     supportedSystems = [
       "aarch64-darwin"
@@ -76,22 +71,6 @@
       '';
 
       installer-iso = inputs.self.nixosConfigurations.installer.config.system.build.isoImage;
-
-      installer-image = nixos-generators.nixosGenerate {
-        system = system;
-        specialArgs = {
-          pkgs = pkgs;
-          diskSize = 20 * 1024;
-        };
-        modules = [
-          # Pin nixpkgs to the flake input, so that the packages installed
-          # come from the flake inputs.nixpkgs.url.
-          ({ ... }: { nix.registry.nixpkgs.flake = nixpkgs; })
-          # Apply the rest of the config.
-          ./machines/installer-image
-        ];
-        format = "raw-efi";
-      };
     });
 
     apps = forAllSystems (system: {