setserial: drop

Upstream is over 25 years old. That's probably older than a lot of
current Nixpkgs contributors!

pkgs/by-name/se/setserial/package.nix

@@ -1,33 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchurl,
-  groff,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "setserial";
-  version = "2.17";
-
-  src = fetchurl {
-    url = "mirror://sourceforge/setserial/${pname}-${version}.tar.gz";
-    sha256 = "0jkrnn3i8gbsl48k3civjmvxyv9rbm1qjha2cf2macdc439qfi3y";
-  };
-
-  nativeBuildInputs = [ groff ];
-
-  installFlags = [ "DESTDIR=$(out)" ];
-
-  postConfigure = ''
-    sed -e s@/usr/man/@/share/man/@ -i Makefile
-  '';
-
-  preInstall = ''mkdir -p "$out/bin" "$out/share/man/man8"'';
-
-  meta = {
-    description = "Serial port configuration utility";
-    platforms = lib.platforms.linux;
-    license = lib.licenses.gpl2Only;
-    mainProgram = "setserial";
-  };
-}

pkgs/top-level/aliases.nix

@@ -1694,6 +1694,7 @@ mapAliases {
   serial-unit-testing = throw "'serial-unit-testing' has been removed due to lack of upstream maintenance"; # Added 2025-01-25
   serious-sans = throw "'serious-sans' has been renamed to 'serious-shanns', which is not currently packaged"; # Added 2025-01-26
   session-desktop-appimage = session-desktop;
+  setserial = throw "'setserial' has been removed as it had been abandoned upstream"; # Added 2025-05-18
   sequoia = sequoia-sq; # Added 2023-06-26
   sexp = sexpp; # Added 2023-07-03
   sgrep = throw "'sgrep' has been removed as it was unmaintained upstream since 1998 and broken with gcc 14"; # Added 2025-05-17