doc: move parameters to an XML file

doc/default.nix

@@ -9,21 +9,6 @@ in pkgs.stdenv.mkDerivation {
 
   src = ./.;
 
-  # Hacking on these variables? Make sure to close and open
-  # nix-shell between each test, maybe even:
-  # $ nix-shell --run "make clean all"
-  # otherwise they won't reapply :)
-  xsltFlags = lib.concatStringsSep " " [
-    "--param section.autolabel 1"
-    "--param section.label.includes.component.label 1"
-    "--stringparam html.stylesheet 'style.css overrides.css highlightjs/mono-blue.css'"
-    "--stringparam html.script './highlightjs/highlight.pack.js ./highlightjs/loader.js'"
-    "--param xref.with.number.and.title 1"
-    "--param toc.section.depth 3"
-    "--stringparam admon.style ''"
-    "--stringparam callout.graphics.extension .svg"
-  ];
-
   postPatch = ''
     ln -s ${doc-support} ./doc-support/result
   '';