Py3 cleanup for nlp/

PiperOrigin-RevId: 339071563

official/nlp/xlnet/preprocess_pretrain_data.py

@@ -15,10 +15,6 @@
 # ==============================================================================
 """Script to pre-process pre-training data into tfrecords."""
 
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-
 import json
 import os
 import random

official/nlp/xlnet/preprocess_squad_data.py

@@ -14,9 +14,6 @@
 # limitations under the License.
 # ==============================================================================
 """Script to pre-process SQUAD data into tfrecords."""
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 
 import os
 import random

official/nlp/xlnet/preprocess_utils.py

@@ -14,9 +14,6 @@
 # limitations under the License.
 # ==============================================================================
 """Utilities for pre-processing."""
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
 import unicodedata
 
 import six

official/nlp/xlnet/training_utils.py

@@ -13,10 +13,6 @@
 # limitations under the License.
 # ==============================================================================
 """XLNet training utils."""
-from __future__ import absolute_import
-from __future__ import division
-# from __future__ import google_type_annotations
-from __future__ import print_function
 
 import os
 import re

official/nlp/xlnet/xlnet_config.py

@@ -14,11 +14,6 @@
 # ==============================================================================
 """Utility functions used in XLNet model."""
 
-from __future__ import absolute_import
-from __future__ import division
-# from __future__ import google_type_annotations
-from __future__ import print_function
-
 import json
 import os