Disable Comments Snippet Generator

<?php
/**
 * Comments off.
 *
 * Nothing here deletes a comment. Every part is a filter, so removing this
 * file brings the comments back exactly as they were.
 */

/**
 * Closes the comment form.
 *
 * @param bool $open    Whether comments are open.
 * @param int  $post_id The post.
 * @return bool
 */
function my_site_comments_open( $open, $post_id ) {

	return false;
}
// Priority 20 so it runs after anything that opened them.
add_filter( 'comments_open', 'my_site_comments_open', 20, 2 );
add_filter( 'pings_open', 'my_site_comments_open', 20, 2 );

/**
 * Hides comments that were already published.
 *
 * They stay in the database; this only stops them being rendered.
 *
 * @param array $comments The comments.
 * @return array
 */
function my_site_hide_comments( $comments ) {
	return array();
}
add_filter( 'comments_array', 'my_site_hide_comments', 20 );

/**
 * Takes comment support off the post types, which removes the Discussion
 * panel from the editor as well.
 */
function my_site_remove_comment_support() {
	foreach ( get_post_types() as $type ) {
		remove_post_type_support( $type, 'comments' );
		remove_post_type_support( $type, 'trackbacks' );
	}
}
add_action( 'init', 'my_site_remove_comment_support', 100 );

/**
 * Removes the Comments menu.
 */
function my_site_remove_comments_menu() {
	remove_menu_page( 'edit-comments.php' );
}
add_action( 'admin_menu', 'my_site_remove_comments_menu' );

/**
 * Redirects anyone who reaches the screen by URL.
 */
function my_site_block_comments_screen() {
	global $pagenow;

	if ( 'edit-comments.php' === $pagenow ) {
		wp_safe_redirect( admin_url() );
		exit;
	}
}
add_action( 'admin_init', 'my_site_block_comments_screen' );

/**
 * Removes the toolbar comments icon.
 */
function my_site_remove_comments_toolbar() {
	if ( is_admin_bar_showing() ) {
		remove_action( 'admin_bar_menu', 'wp_admin_bar_comments_menu', 60 );
	}
}
add_action( 'init', 'my_site_remove_comments_toolbar' );

/**
 * Closes the REST comments route.
 *
 * The form being gone from the theme does not stop a POST to
 * /wp-json/wp/v2/comments.
 *
 * @param array $endpoints REST endpoints.
 * @return array
 */
function my_site_remove_comment_endpoints( $endpoints ) {
	unset( $endpoints['/wp/v2/comments'] );
	unset( $endpoints['/wp/v2/comments/(?P<id>[\d]+)'] );

	return $endpoints;
}
add_filter( 'rest_endpoints', 'my_site_remove_comment_endpoints' );

/**
 * Removes the XML-RPC comment methods.
 *
 * @param array $methods XML-RPC methods.
 * @return array
 */
function my_site_remove_xmlrpc_comments( $methods ) {
	unset( $methods['wp.newComment'] );
	unset( $methods['wp.getComments'] );
	unset( $methods['wp.getComment'] );
	unset( $methods['wp.editComment'] );
	unset( $methods['wp.deleteComment'] );

	return $methods;
}
add_filter( 'xmlrpc_methods', 'my_site_remove_xmlrpc_comments' );