Remove `$accepted_args` from hooks, whose callbacks do not have any arguments

[itowhid06]

Some callable functions do not accept any arguments, but they have 1 as accepted argument numbers in default-filters.php. This patch removes them.

[itowhid06]

Related #48094

[johnbillion]

Thanks for the patch @itowhid06 . The default value for the $accepted_args parameter of add_action() is 1, so this change doesn't correct anything.

Can you update the patch to change the parameter to 0 where appropriate?

[itowhid06]

Thanks for the suggestion @johnbillion . I've updated the patch. Is it OK now?

[jrf]

LGTM

[jrf]

Confirmed that none of these three functions take arguments:

• ​https://developer.wordpress.org/reference/functions/do_feed_rdf/
• ​https://developer.wordpress.org/reference/functions/do_feed_rss/
• ​https://developer.wordpress.org/reference/functions/do_all_pings/

Relevant hook calls:

• ​https://developer.wordpress.org/reference/hooks/do_feed_feed/

I've not been able to find a WP native do_action() call with the hook name do_pings, though that is outside the scope of this ticket.

[SergeyBiryukov]

Replying to jrf:

I've not been able to find a WP native do_action() call with the hook name do_pings, though that is outside the scope of this ticket.

It's an event scheduled in _publish_post_hook()​.

[SergeyBiryukov]

In 46432:

Coding Standards: Correct the number of accepted arguments in add_action() calls in wp-includes/default-filters.php for functions that don't accept any arguments.

Props itowhid06, johnbillion, jrf.
Fixes #48123.