libsForQt5.libdbusmenu: drop

Unused and would be broken by CMake 4.

pkgs/development/libraries/libdbusmenu-qt/qt-5.5.nix

@@ -1,33 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchgit,
-  cmake,
-  qtbase,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "libdbusmenu-qt";
-  version = "0.9.3+16";
-
-  src = fetchgit {
-    url = "https://git.launchpad.net/ubuntu/+source/libdbusmenu-qt";
-    rev = "import/${version}.04.20160218-1";
-    sha256 = "039yvklhbmfbcynrbqq9n5ywmj8bjfslnkzcnwpzyhnxdzb6yxlx";
-  };
-
-  buildInputs = [ qtbase ];
-  nativeBuildInputs = [ cmake ];
-
-  cmakeFlags = [ "-DWITH_DOC=OFF" ];
-
-  dontWrapQtApps = true;
-
-  meta = with lib; {
-    homepage = "https://launchpad.net/libdbusmenu-qt";
-    description = "Provides a Qt implementation of the DBusMenu spec";
-    maintainers = [ maintainers.ttuegel ];
-    inherit (qtbase.meta) platforms;
-    license = licenses.lgpl2;
-  };
-}

pkgs/top-level/qt5-packages.nix

@@ -108,8 +108,6 @@ makeScopeWithSplicing' {
 
         libcommuni = callPackage ../development/libraries/libcommuni { };
 
-        libdbusmenu = callPackage ../development/libraries/libdbusmenu-qt/qt-5.5.nix { };
-
         libiodata = callPackage ../development/libraries/libiodata { };
 
         liblastfm = callPackage ../development/libraries/liblastfm { };