WordPress: Remove a lot of bloat from the source code. Place the code in your themes' functions.php or in your WordPress plugin

gistfile1.txt

remove_action( 'wp_head', 'wlwmanifest_link');
remove_action('wp_head', 'wp_generator');
remove_action('wp_head', 'rsd_link');

remove_action('wp_head', 'print_emoji_detection_script', 7);
remove_action('wp_print_styles', 'print_emoji_styles');
remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
remove_action( 'admin_print_styles', 'print_emoji_styles' );

remove_action( 'wp_head', 'feed_links', 2 );
remove_action( 'wp_head', 'index_rel_link' );

remove_action( 'wp_head', 'feed_links_extra', 3 );
remove_action( 'wp_head', 'start_post_rel_link', 10, 0 );
remove_action( 'wp_head', 'parent_post_rel_link', 10, 0 );
remove_action( 'wp_head', 'adjacent_posts_rel_link', 10, 0 );
remove_action( 'wp_head', 'wp_shortlink_wp_head', 10, 0 );
remove_action( 'wp_head', 'adjacent_posts_rel_link_wp_head', 10, 0 );
remove_action( 'wp_head',      'rest_output_link_wp_head'              );
remove_action( 'wp_head',      'wp_oembed_add_discovery_links'         );
remove_action( 'template_redirect', 'rest_output_link_header', 11 );

add_filter('multilingualpress.hreflang_type', '__return_false');