def delete_secondary_backup(base_path):
  if not remove("{0}{1}".format(base_path, BACKUP_ROLLBACK_SUFFIX)):
    logging.warning("No secondary backup to remove. Skipping...")
Deletes the secondary backup if it exists, upon successful backup.
dataset/ETHPy150Open AppScale/appscale/AppDB/backup/backup_recovery_helper.py/delete_secondary_backup