despecial

/* add to functions.php in theme folder */

// Remove All Yoast HTML Comments
// https://gist.github.com/paulcollett/4c81c4f6eb85334ba076
if (defined('WPSEO_VERSION')){
  add_action('get_header',function (){ ob_start(function ($o){
  return preg_replace('/\n?<.*?yoast.*?>/mi','',$o); }); });
  add_action('wp_head',function (){ ob_end_flush(); }, 999);
}

despecial

/* add to functions.php in theme folder */

// Remove Slider Revolution meta tag
add_filter('wp_head', 'remove_revslider_meta_tag',0);
function remove_revslider_meta_tag() {
	remove_action('wp_head', 'ls_meta_generator', 9);
}