php7 and Tip84

Hello Tomas,

there is a php7 problem: Function create_function() is deprecated.

/**
 * 4.2 - Tip84 - Remove error message on the login page.
 *
 * @link https://www.wpbeginner.com/wp-tutorials/11-vital-tips-and-hacks-to-protect-your-wordpress-admin-area/
 */

// OLD
//add_filter( 'login_errors', create_function('$a', "return null;") );

// NEW
function no_wordpress_errors(){
  return 'Something is wrong!';
}
add_filter( 'login_errors', 'no_wordpress_errors' );

Thank you for your nice theme!