We no longer use gtk-doc after switching to gi-docgen in #226662
Pull request: https://github.com/WebKit/WebKit/pull/9860
Committed 260058@main (4a1231c35a59): <https://commits.webkit.org/260058@main> Reviewed commits have been landed. Closing PR #9860 and removing active labels.
<rdar://problem/105216913>