Revert a change to imports which breaks the instructions given in the tutorial

tutorials/rnn/translate/__init__.py

@@ -18,5 +18,5 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
-from . import data_utils
-from . import seq2seq_model
+import data_utils
+import seq2seq_model

tutorials/rnn/translate/seq2seq_model.py

@@ -25,7 +25,7 @@ import numpy as np
 from six.moves import xrange  # pylint: disable=redefined-builtin
 import tensorflow as tf
 
-from . import data_utils
+import data_utils
 
 
 class Seq2SeqModel(object):