code: function(datasetClientsToRemove, callback) {
        if (!datasetClientsToRemove.length) {
          return callback();
        }
        return metrics.timeAsyncFunc(metrics.KEYS.MONGODB_OPERATION_TIME, doRemoveDatasetClients)(datasetClientsToRemove, callback);
      }
docs: remove the given datasetClients from the storage. Each datasetclient should have at least the `id` field
  @param {storage~DatasetClient[]} datasetClientsToRemove
  @param {Function} callback