gistfile1.php

<?php

$query = new EntityFieldQuery();
  $terms = $query->entityCondition('entity_type', 'taxonomy_term')
    ->entityCondition('bundle', $voc_name)
    ->fieldCondition('field_tags_show_as_filter', 'value', 1)
    ->execute();
  $result = array();
  if (!empty($terms)) {
    foreach($terms['taxonomy_term'] as $term) {
      $result[$term->tid] = $term->tid;
    }
  }

?>

name.php

<?php
  if (isset($cancel_link)) {
    $form['actions']['cancel'] = array(
      '#markup' => $cancel_link,
      '#weight' => 21,
    );
  }
?>