dclib: remove

According to the tool's (Valknut, formerly DCGUI) website [^1],
the original author stopped maintaining the tool this library was
used for after the version packaged in nixpkgs up to now:

> Nach der Veröffentlichung von Valknut 0.3.7 stellte Mathias Küster die Arbeit an Valknut ein.

Someone else took over development, but the publishing folder for dclib
doesn't contain any new versions after v. 0.3.23 (2009) either [^2].
The GUI distribution folders also look abandoned.

As the version from 2009 also fails with the same build error and
this library isn't referenced anywhere else in nixpkgs (and there's
no listed maintainer), I advocate for removing this package.

[^1]: https://www.berlios.de/software/valknut/
[^2]: https://sourceforge.net/projects/wxdcgui/files/dclib/

pkgs/by-name/dc/dclib/package.nix

@@ -1,36 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchurl,
-  libxml2,
-  openssl,
-  bzip2,
-  zlib,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "dclib";
-  version = "0.3.7";
-
-  src = fetchurl {
-    url = "ftp://ftp.debian.nl/pub/freebsd/ports/distfiles/dclib-${version}.tar.bz2";
-    sha256 = "02jdzm5hqzs1dv2rd596vgpcjaapm55pqqapz5m94l30v4q72rfc";
-  };
-
-  buildInputs = [
-    libxml2
-    openssl
-    bzip2
-    zlib
-  ];
-
-  meta = with lib; {
-    description = "Peer-to-Peer file sharing client";
-    homepage = "http://dcgui.berlios.de";
-    platforms = platforms.linux;
-    license = [
-      licenses.openssl
-      licenses.gpl2
-    ];
-  };
-}

pkgs/top-level/aliases.nix

@@ -517,6 +517,7 @@ mapAliases {
   dave = throw "'dave' has been removed as it has been archived upstream. Consider using 'webdav' instead"; # Added 2025-02-03
   dbeaver = throw "'dbeaver' has been renamed to/replaced by 'dbeaver-bin'"; # Added 2024-05-16
   dbench = throw "'dbench' has been removed as it is unmaintained for 14 years and broken"; # Added 2025-05-17
+  dclib = throw "'dclib' has been removed as it is unmaintained for 16 years and broken"; # Added 2025-05-25
   dbus-map = throw "'dbus-map' has been dropped as it is unmaintained"; # Added 2024-11-01
   deadpixi-sam = deadpixi-sam-unstable;