presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/backup/FileBackupStore.java/FileBackupStore/deleteShard
class FileBackupStore:    @Override
    public boolean deleteShard(UUID uuid)
    {
        try {
            return deleteIfExists(getBackupFile(uuid).toPath());
        }
        catch (IOException e) {
            throw new PrestoException(RAPTOR_BACKUP_ERROR, "Failed to delete backup shard: " + uuid, e);
        }
    }