message: removed print from doctest
diff: @@ -322,8 +322,6 @@ def distribute(processing_mode,
  started first so that tf.data workers can register to it.
  >>> dispatcher = tf.data.experimental.service.DispatchServer()
  - >>> print(dispatcher.target) # prints grpc://localhost:<port>
  -
  >>> dispatcher_address = dispatcher.target.split("://")[1]
  >>> worker1 = tf.data.experimental.service.WorkerServer(
  ... dispatcher_address=dispatcher_address)
  