Implements hook_file_delete().

File

drupal-7.x/modules/user/user.module, line 907

Enables the user registration and login system.

Code

function user_file_delete($file) {
  // Remove any references to the file.
  db_update('users')
    ->fields(array('picture' => 0))
    ->condition('picture', $file->fid)
    ->execute();
}