Deletes one or more read sets. If the operation is successful, it returns a response with no body. If there is an error with deleting one of the read sets, the operation returns an error list. If the operation successfully deletes only a subset of files, it will return an error list for the remaining files that fail to be deleted. There is a limit of 100 read sets that can be deleted in each <code>BatchDeleteReadSet</code> API call.