[FIX] website: remove confusing comment

The comment was introduced alongside its related line with [1].
The line was removed with [2] but its comment was not, leading to
confusion now.
Instead of removing it in master, might as well remove the confusion in
lower version..

[1]: https://github.com/odoo/odoo/commit/3542a27f9c4c44472184bbedc348ad646d46f20a
[2]: https://github.com/odoo/odoo/commit/0effbe3ca628460b9a0c257ea0bd6060c3eeb253



closes odoo/odoo#99963

Signed-off-by: Romain Derie (rde) <rde@odoo.com>

addons/website/models/website.py

@@ -724,7 +724,6 @@ class Website(models.Model):
         """
 
         router = http.root.get_db_router(request.db)
-        # Force enumeration to be performed as public user
         url_set = set()
 
         sitemap_endpoint_done = set()