heroic: migrate to pkgs/by-name

pkgs/by-name/he/heroic-unwrapped/package.nix

@@ -7,7 +7,8 @@
   nodejs,
   python3,
   makeWrapper,
-  electron,
+  # Upstream uses EOL Electron 31.  Use next oldest version.
+  electron_33,
   vulkan-helper,
   gogdl,
   legendary-heroic,
@@ -15,6 +16,9 @@
   comet-gog,
 }:
 
+let
+  electron = electron_33;
+in
 stdenv.mkDerivation (finalAttrs: {
   pname = "heroic-unwrapped";
   version = "2.16.1";

pkgs/top-level/all-packages.nix

@@ -17030,13 +17030,6 @@ with pkgs;
     fteqcc
     ;
 
-  heroic-unwrapped = callPackage ../games/heroic {
-    # Upstream uses EOL Electron 31.  Use next oldest version.
-    electron = electron_33;
-  };
-
-  heroic = callPackage ../games/heroic/fhsenv.nix { };
-
   pmars-x11 = pmars.override { enableXwinGraphics = true; };
 
   vanillatd = callPackage ../by-name/va/vanillatd/package.nix { appName = "vanillatd"; };