pkgs.rmDbusServices: also remove dbus properties from .desktop files

pkgs/additional/trivial-builders/default.nix

@@ -2,11 +2,17 @@
 {
   # given some package, create a new package which symlinks every file of the original
   # *except* for its dbus files.
+  # in addition, edit its .desktop files to clarify that it can't be "dbus activated".
   rmDbusServices = pkg: symlinkJoin {
     name = pkg.name or pkg.pname;
     paths = [ pkg ];
     postBuild = ''
       rm -rf $out/share/dbus-1
+      for d in $out/share/applications/*.desktop; do
+        if substitute "$d" ./substituteResult --replace-fail DBusActivatable=true DBusActivatable=false; then
+          mv ./substituteResult "$d"
+        fi
+      done
     '';
   };
 }