/**
 * Implements hook_page_attachments_alter().
 */
function {{ machine_name }}_page_attachments_alter(array &$attachments) {
  // Conditionally remove an asset.
  if (in_array('core/jquery', $attachments['#attached']['library'])) {
    $index = array_search('core/jquery', $attachments['#attached']['library']);
    unset($attachments['#attached']['library'][$index]);
  }
}