remove a callback hook using a shortcut strategy

post.php

add_action( 'genesis_entry_header', 'remove_post_byline', 9999 );
/**
 * Remove the post metadata byline from the HTML markup.
 *
 * @since 1.0.0
 *
 * @return void
 */
function remove_post_byline() {
	remove_action( 'genesis_entry_header', 'genesis_post_info', 12 );
}