And waits for them. That's pointless.
catch (const Coordination::Exception & e)
    {
        if (parts_should_be_retried && Coordination::isHardwareError(e.code))
            parts_should_be_retried->insert(part_names.begin(), part_names.end());
        throw;
    }
    for (size_t i = 0; i < remove_futures.size(); ++i)
    {
        auto & future = remove_futures[i];
        if (!future.valid())
            continue;
        auto response = future.get();
        if (response.error == Coordination::Error::ZOK)
            continue;
        else if (response.error == Coordination::Error::ZNONODE)
        {
            LOG_DEBUG(log, "There is no part {} in ZooKeeper, it was only in filesystem", part_names[i]);
            continue;
        }
        else if (Coordination::isHardwareError(response.error))
        {
            if (parts_should_be_retried)
                parts_should_be_retried->insert(part_names[i]);
            continue;
        }
        else
            LOG_WARNING(log, "Cannot remove part {} from ZooKeeper: {}", part_names[i], Coordination::errorMessage(response.error));
    }
}
void StorageReplicatedMergeTree::getClearBlocksInPartitionOps(