Update files from the datasets library (from 1.6.0)

Release notes: https://github.com/huggingface/datasets/releases/tag/1.6.0

smartdata.py

@@ -17,7 +17,6 @@ DFKI SmartData Corpus is a dataset of 2598 German-language documents
 which has been annotated with fine-grained geo-entities, such as streets,
 stops and routes, as well as standard named entity types."""
 
-from __future__ import absolute_import, division, print_function
 
 import re
 from json import JSONDecodeError, JSONDecoder