When using the jscalendar plugin, it creates in the transient directory some files (a bit like the recentchanges plugin does). When the calendar that triggered creation of this file is removed, I would like to remove the corresponding page as well, but I cannot, because I get the following error.

internal error: jscalendar/90cde8dfad6413813b324a15ae2d1d95041aedd69e7be36c02b0cd4a58c4af73.jscalendar cannot be found in <path of wiki> or underlay

My guess is that:

• the page is stored, internally, in some list of pages to render (as it depends on the page containing the calendar that was just deleted);
• my plugin delete this page (using IkiWiki::prune() or unlink(), in the rendered() or needsbuild() hook);
• IkiWiki tries to render the page, but cannot (since I just deleted it), and throws the error.

My question is: How can I tell IkiWiki that I deleted this page, and that it is no longer necessary to render it? Is there a hook in which I can safely do this?