remove wp adds

functions.php

//**  Speed Up Wordpress  **/
remove_action('wp_head','wp_generator');
remove_action('wp_head','wlwmanifest_link');
remove_action('wp_head','wp_resource_hints', 2);
remove_action('wp_head','wlwmanifest_link');
remove_action('wp_head','rsd_link');
remove_action('wp_head','rel_canonical');
remove_action('wp_head','wp_site_icon');
remove_action('wp_head','wp_oembed_add_discovery_links' );
remove_action('wp_head','wp_oembed_add_host_js' );
remove_action('wp_head','feed_links_extra', 3 );
remove_action('wp_head','feed_links', 2 );
remove_action('wp_head','print_emoji_detection_script', 7 );
remove_action('wp_head','rest_output_link_wp_head' );
remove_action('wp_head','noindex', 1 );
remove_action('wp_head','wp_shortlink_wp_head', 10, 0);
remove_action('wp_head','adjacent_posts_rel_link_wp_head', 10, 0 );

// Disable REST API
add_filter( 'rest_enabled', '__return_false' );
remove_action( 'xmlrpc_rsd_apis', 'rest_output_rsd' );
remove_action( 'template_redirect', 'rest_output_link_header', 11);
remove_action( 'auth_cookie_malformed', 'rest_cookie_collect_status' );
remove_action( 'auth_cookie_expired', 'rest_cookie_collect_status' );
remove_action( 'auth_cookie_bad_username', 'rest_cookie_collect_status' );
remove_action( 'auth_cookie_bad_hash', 'rest_cookie_collect_status' );
remove_action( 'auth_cookie_valid', 'rest_cookie_collect_status' );
remove_filter( 'rest_authentication_errors', 'rest_cookie_check_errors', 100 );
remove_action( 'init', 'rest_api_init' );
remove_action( 'rest_api_init', 'rest_api_default_filters', 10 );
remove_action( 'parse_request', 'rest_api_loaded' );
remove_action( 'rest_api_init', 'wp_oembed_register_route' );
remove_filter( 'rest_pre_serve_request', '_oembed_rest_pre_serve_request', 10 );

// Disable RSS
function fb_disable_feed() {wp_redirect(get_option('siteurl'));}
add_action('do_feed', 'fb_disable_feed', 1);
add_action('do_feed_rdf', 'fb_disable_feed', 1);
add_action('do_feed_rss', 'fb_disable_feed', 1);
add_action('do_feed_rss2', 'fb_disable_feed', 1);
add_action('do_feed_atom', 'fb_disable_feed', 1);

// Disable Emojii
remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
remove_action( 'wp_print_styles', 'print_emoji_styles' );
remove_action( 'admin_print_styles', 'print_emoji_styles' );
remove_filter( 'the_content_feed', 'wp_staticize_emoji' );
remove_filter( 'comment_text_rss', 'wp_staticize_emoji' );
remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );

// Disable srcset
add_filter('wp_calculate_image_srcset_meta', '__return_null' );
add_filter('wp_calculate_image_sizes', '__return_false', 99 );
remove_filter('the_content', 'wp_make_content_images_responsive' );

// Disable Gutenberg
add_filter( 'use_block_editor_for_post_type', '__return_false', 100 );
add_action( 'admin_init', function(){
remove_action( 'admin_notices', [ 'WP_Privacy_Policy_Content', 'notice' ] );
add_action( 'edit_form_after_title', [ 'WP_Privacy_Policy_Content', 'notice' ] );
});

// Disable XML-RPC
add_filter('xmlrpc_enabled', '__return_false');

// Disable Gutenberg Styles
function gut_style_disable() {wp_dequeue_style( 'wp-block-library' );}
add_action( 'wp_enqueue_scripts', 'gut_style_disable', 100 );

// Remove JQ Migrate
function isa_remove_jquery_migrate( &$scripts ) {
if( !is_admin() ) {
$scripts->remove( 'jquery' );
$scripts->add( 'jquery', false, array( 'jquery-core' ), '1.12.4' );
}
}
add_filter( 'wp_default_scripts', 'isa_remove_jquery_migrate' );

// Remove CSS/JS Version
add_filter( 'style_loader_src', 'remove_cssjs_ver', 10, 2 );
add_filter( 'script_loader_src', 'remove_cssjs_ver', 10, 2 );
function remove_cssjs_ver( $src ) {
if( strpos($src,'?ver='))
$src = remove_query_arg( 'ver', $src );
return $src;
}