Removing author link

Hi there

I tried this code to remove the author link:

add_filter( 'generate_page_hero_post_author', function() {
global $post;
$author_id = $post->post_author;

return sprintf( '<span class="author vcard" itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><span class="author-name" itemprop="name">%s</span></span>',
esc_html( get_the_author_meta( 'display_name', $author_id ) )
);
} );

It worked on some pages, but not on these (see below). Can you take a look please

Thanks

G