For modules, classes, and namespaces with ancestors, page title h1 headings include links to the pages for those ancestors. Now that we have breadcrumbs to make this navigation more obvious, these links are redundant and create noise for screenreaders.
For example, on https://doc.wikimedia.org/mediawiki-core/master/js/mw.ForeignStructuredUpload.BookletLayout.html, both "mw" and "ForeignStructuredUpload" are links in the h1.
To do: Remove links in page titles