LibWeb+WebContent: Delete unused page_did_layout()

Author: https://github.com/kalenikaliaksandr
Commit: aa31b69e7e
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5481
Reviewed-by: https://github.com/gmta ✅

Libraries/LibWeb/DOM/Document.cpp

@@ -1393,10 +1393,6 @@ void Document::update_layout(UpdateLayoutReason reason)
     update_paint_and_hit_testing_properties_if_needed();
     paintable()->assign_clip_frames();
 
-    if (navigable->is_traversable()) {
-        page().client().page_did_layout();
-    }
-
     if (auto range = get_selection()->range()) {
         paintable()->recompute_selection_states(*range);
     }