Remove unwanted buttons from TinyMCE editor (Wordpress)

functions.php

<?php

function tiny_mce_remove_unused_buttons_row_1($buttons) {
  $remove = array('wp_more', 'aligncenter', 'alignleft', 'alignright');
  return array_diff($buttons,$remove);
}

add_filter('mce_buttons','tiny_mce_remove_unused_buttons_row_1');


function tiny_mce_remove_unused_buttons_row_2($buttons) {
  $remove = array('forecolor');
  return array_diff($buttons,$remove);
}

add_filter('mce_buttons_2','tiny_mce_remove_unused_buttons_row_2');