Remove WordPress information

PHP
remove_action('wp_head', 'feed_links_extra', 3);
remove_action('wp_head', 'feed_links', 2);
remove_action('wp_head', 'rsd_link');
remove_action('wp_head', 'wlwmanifest_link'); 
remove_action('wp_head', 'index_rel_link');
remove_action('wp_head', 'parent_post_rel_link', 10, 0);
remove_action('wp_head', 'start_post_rel_link', 10, 0);
remove_action('wp_head', 'adjacent_posts_rel_link', 10, 0);
remove_action('wp_head', 'wp_generator');
remove_action('wp_head', 'adjacent_posts_rel_link_wp_head', 10, 0);
remove_action('wp_head', 'rel_canonical');
remove_action('wp_head', 'wp_shortlink_wp_head', 10, 0);
remove_action('wp_head', 'print_emoji_detection_script', 7 );
remove_action('wp_print_styles', 'print_emoji_styles' );
remove_action('welcome_panel', 'wp_welcome_panel');
remove_filter('the_excerpt', 'wpautop');
add_filter('show_admin_bar','__return_false');