message: Fix codeblock in quantization docs.
diff: @@ -28,7 +28,6 @@ Currently, this requires training a model with
  Convert the graph:
  ```
  -with tf.Session() as sess:
  converter = tf.lite.TFLiteConverter.from_saved_model(saved_model_dir)
  converter.inference_type = tf.lite.constants.QUANTIZED_UINT8
  input_arrays = converter.get_input_arrays()
  