bug#60328: 30.0.50; [PATCH] Replace newsticker--lists-intersect-p.

[Stefan Kangas]

LdBeth <andpuke@foxmail.com> writes:

> All the patterns that calls `newsticker--lists-intersect-p' in
> lisp/net/newst-plainview.el like:
>
> (newsticker--lists-intersect-p
>  (get-text-property (point) 'invisible)
>   buffer-invisibility-spec)
>
> Can be replace by `(invisible-p (point))' accordingly to reduce
> boilerplate.
>
> This patch would also remove the definition of
> `newsticker--lists-intersect-p' from lisp/net/newst-backend.el
> since is it not referenced elsewhere.

Ulf, do you have any comments on this patch?