message: tf.signal: Remove set_shape from documentation for linear_to_mel_weight_matrix.
  tf.tensordot has shape inference now.
diff: @@ -128,8 +128,6 @@ def linear_to_mel_weight_matrix(num_mel_bins=20,
  # S has shape [..., num_spectrogram_bins].
  # M has shape [..., num_mel_bins].
  M = tf.tensordot(S, A, 1)
  - # tf.tensordot does not support shape inference for this case yet.
  - M.set_shape(S.shape[:-1].concatenate(A.shape[-1:]))
  Args:
  num_mel_bins: Python int. How many bands in the resulting mel spectrum.
  