Remove old, unnecessary code

release.nix

@@ -2,12 +2,7 @@ let
   pkgs = import <nixpkgs> {};
   
   jobs = rec {
-    build = pkgs.callPackages ./. {}; # {system ? currentSystem }:
-      # let pkgs = import <nixpkgs> { inherit system; }; in
-      # pkgs.releaseTools.nixBuild {
-      #   name = "cookbook";
-      #   src = jobs.tarball;
-      # };
+    build = pkgs.callPackages ./. {};
   };
 in
 jobs