Drupal 7 remove field collection item programmatically

foreach ($node->[FIELD_NAME][LANGUAGE_NONE] as $key => $value) {
  // Build array of field collection values.
  $field_collection_item_values[] = $value['value'];

  // Unset them.  
  unset($node->[FIELD_NAME][LANGUAGE_NONE][$key]);
}

// Delete field collection items.
entity_delete_multiple('field_collection_item', $field_collection_item_values);