remove image generation from Hydra

Signed-off-by: ahuston-0 <aliceghuston@gmail.com>

hydra/jobs.nix

@@ -3,15 +3,8 @@ let
   inherit (inputs.nixpkgs.lib) mapAttrs;
 
   getCfg = _: cfg: cfg.config.system.build.toplevel;
-  # getFormat =
-  #   _: cfg: format:
-  #    cfg.config.formats.${format};
-  imageWrapper = format: mapAttrs (_: cfg: cfg.config.formats.${format}) outputs.nixosConfigurations;
 in
 {
   inherit (outputs) formatter devShells;
   hosts = mapAttrs getCfg outputs.nixosConfigurations;
-  install-isos = imageWrapper "install-iso";
-  isos = imageWrapper "iso";
-  qcow = imageWrapper "qcow";
 }