file_unmanaged_delete

file_unmanaged_delete($path)

function file_unmanaged_delete($path) {
  if (is_file($path)) {
    return drupal_unlink($path);
  }
  $logger = \Drupal::logger('file');
  if (is_dir($path)) {
    $logger->error('%path is a directory and cannot be removed using file_unmanaged_delete().', array('%path' => $path));
    return FALSE;
  }
  // Return TRUE for non-existent file, but log that nothing was actually
  // deleted, as the current state is the intended result.
  if (!file_exists($path)) {
    $logger->notice('The file %path was not deleted because it does not exist.', array('%path' => $path));
    return TRUE;
  }
  // We cannot handle anything other than files and directories. Log an error
  // for everything else (sockets, symbolic links, etc).
  $logger->error('The file %path is not of a recognized type so it was not deleted.', array('%path' => $path));
  return FALSE;
}