equilux-theme: remove

Depends on gtk-engine-murrine, which is being removed from nixpkgs.

pkgs/by-name/eq/equilux-theme/package.nix

@@ -1,57 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitHub,
-  gnome-shell,
-  glib,
-  libxml2,
-  gtk-engine-murrine,
-  gdk-pixbuf,
-  librsvg,
-  bc,
-}:
-
-stdenv.mkDerivation (finalAttrs: {
-  pname = "equilux-theme";
-  version = "20181029";
-
-  src = fetchFromGitHub {
-    owner = "ddnexus";
-    repo = "equilux-theme";
-    tag = "equilux-v${finalAttrs.version}";
-    hash = "sha256-zCEo2D6/PH0MBbb8ssg415EWA1iWm1Nu59NWC7v3YlM=";
-  };
-
-  nativeBuildInputs = [
-    glib
-    libxml2
-    bc
-  ];
-
-  buildInputs = [
-    gdk-pixbuf
-    librsvg
-  ];
-
-  propagatedUserEnvPkgs = [ gtk-engine-murrine ];
-
-  dontBuild = true;
-
-  installPhase = ''
-    patchShebangs install.sh
-    sed -i install.sh \
-      -e "s|if .*which gnome-shell.*;|if true;|" \
-      -e "s|CURRENT_GS_VERSION=.*$|CURRENT_GS_VERSION=${lib.versions.majorMinor gnome-shell.version}|"
-    mkdir -p $out/share/themes
-    ./install.sh --dest $out/share/themes
-    rm $out/share/themes/*/COPYING
-  '';
-
-  meta = {
-    inherit (finalAttrs.src.meta) homepage;
-    description = "Material Design theme for GNOME/GTK based desktop environments";
-    license = lib.licenses.gpl2;
-    platforms = lib.platforms.all;
-    maintainers = [ lib.maintainers.fpletz ];
-  };
-})

pkgs/top-level/aliases.nix

@@ -765,6 +765,7 @@ mapAliases {
   enyo-doom = throw "'enyo-doom' has been renamed to/replaced by 'enyo-launcher'"; # Converted to throw 2025-10-27
   epapirus-icon-theme = throw "'epapirus-icon-theme' has been removed because 'papirus-icon-theme' no longer supports building with elementaryOS icon support"; # Added 2025-06-15
   epick = throw "'epick' has been removed as it has been unmaintained upstream since November 2022"; # Added 2026-02-07
+  equilux-theme = throw "'equilux-theme' has been removed because it depended on 'gtk-engine-murrine', which was removed because it was unmaintained upstream and depended on GTK 2."; # Added 2026-07-22
   eris-go = throw "'eris-go' has been removed due to a hostile upstream moving tags and breaking src FODs"; # Added 2025-09-01
   eriscmd = throw "'eriscmd' has been removed due to a hostile upstream moving tags and breaking src FODs"; # Added 2025-09-01
   erlang = warnAlias "'erlang' is deprecated in favor of using the beamPackages sets. Use 'beamPackages.erlang' instead." beamPackages.erlang; # added 2026-06-15