private void tryDeleteBackupFile(BackupFileInfo backupFileInfo) {
    Path toDelete = backupDirPath.resolve(backupFileInfo.getFilename());
    deleteFile(toDelete);
  }
Try to delete the backup from local storage. This function doesn't guarantee file would be removed. It exits at
any exception, since file would be removed next time.
ambry-account/src/main/java/com/github/ambry/account/BackupFileManager.java