fahviewer: drop

The build fails with

    error: cannot download fahviewer_7.6.21_amd64.deb from any mirror

pkgs/applications/science/misc/foldingathome/viewer.nix

@@ -1,56 +0,0 @@
-{ lib, stdenv
-, autoPatchelfHook
-, dpkg
-, fetchurl
-, libglut
-, gcc-unwrapped
-, libGL
-, libGLU
-, makeWrapper
-, zlib
-}:
-let
-  majMin = lib.versions.majorMinor version;
-  version = "7.6.21";
-in
-stdenv.mkDerivation rec {
-  inherit version;
-  pname = "fahviewer";
-
-  src = fetchurl {
-    url = "https://download.foldingathome.org/releases/public/release/fahviewer/debian-stable-64bit/v${majMin}/fahviewer_${version}_amd64.deb";
-    sha256 = "00fd00pf6fcpplcaahvy9ir60mk69d9rcmwsyq3jrv9mxqm9aq7p";
-  };
-
-  nativeBuildInputs = [
-    autoPatchelfHook
-    dpkg
-    makeWrapper
-  ];
-
-  buildInputs = [
-    libglut
-    gcc-unwrapped.lib
-    libGL
-    libGLU
-    zlib
-  ];
-
-  unpackPhase = ''
-    dpkg-deb -x ${src} ./
-    sed -e "s|/usr/bin|$out/bin|g" -i usr/share/applications/FAHViewer.desktop
-  '';
-
-  installPhase = ''
-    cp -ar usr $out
-  '';
-
-  meta = {
-    description = "Folding@home viewer";
-    homepage = "https://foldingathome.org/";
-    sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
-    license = lib.licenses.unfree;
-    maintainers = [ lib.maintainers.zimbatm ];
-    platforms = [ "x86_64-linux" ];
-  };
-}

pkgs/top-level/aliases.nix

@@ -454,6 +454,7 @@ mapAliases {
   ### F ###
 
   fahcontrol = throw "fahcontrol has been removed because the download is no longer available"; # added 2024-09-24
+  fahviewer = throw "fahviewer has been removed because the download is no longer available"; # added 2024-09-24
   fam = throw "'fam' (aliased to 'gamin') has been removed as it is unmaintained upstream"; # Added 2024-04-19
   fancypp = throw "'fancypp' was removed because it and its dependants are unmaintained"; # Added 2024-02-14
   faustStk = faustPhysicalModeling; # Added 2023-05-16

pkgs/top-level/all-packages.nix

@@ -37549,7 +37549,6 @@ with pkgs;
   flockit = callPackage ../tools/backup/flockit { };
 
   fahclient = callPackage ../applications/science/misc/foldingathome/client.nix { };
-  fahviewer = callPackage ../applications/science/misc/foldingathome/viewer.nix { };
 
   fbmark = callPackage ../tools/misc/fbmark { };