Update files from the datasets library (from 1.6.0)

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

mwsc.py

@@ -1,5 +1,4 @@
 """A modification of the Winograd Schema Challenge to ensure answers are a single context word"""
-from __future__ import absolute_import, division, print_function
 
 import os
 import re