[Tei-council] build broken again, blaming Syd

Hi Syd, your recent commit "Work on #1867“ https://github.com/TEIC/TEI/commit/8c67de23c612248f399962451100fd9de1dc812c broke the build with the error message "error: duplicate attribute „type““. I see that this is a combined issue of Guidelines #1867 and Stylesheets #370 where probably the Stylesheets need to be fixed first. So, since we are in refridge period I think it’d be better to revert that change and/or move this work into a separate branch. Best Peter