'Delete registration info from disk
:param account_id: id of account which should be deleted'

def delete(self, account_id):

    account_dir_path = self._account_dir_path(account_id)
    if (not os.path.isdir(account_dir_path)):
        raise errors.AccountNotFound(('Account    at    %s    does    not    exist' % account_dir_path))
    shutil.rmtree(account_dir_path)
