message: Fix warning caused by squeeze_dims
  The `squeeze_dims` in `tf.squeeze` has been deprecated
  in favor of `axis`. This fix fixes the `squeeze_dims`
  in text_classification_cnn.py so that the warning
  could be removed.
diff: @@ -73,7 +73,7 @@ def cnn_model(features, labels, mode):
  kernel_size=FILTER_SHAPE2,
  padding='VALID')
  # Max across each filter to get useful features for classification.
  - pool2 = tf.squeeze(tf.reduce_max(conv2, 1), squeeze_dims=[1])
  + pool2 = tf.squeeze(tf.reduce_max(conv2, 1), axis=[1])
  # Apply regular WX + B and classification.
  logits = tf.layers.dense(pool2, MAX_LABEL, activation=None)
  