message: Remove infeasible & obsolete TODO on schema.
diff: @@ -88,7 +88,6 @@ enum BuiltinOperator : byte {
  SPACE_TO_DEPTH = 26,
  SVDF = 27,
  TANH = 28,
  - // TODO(aselle): Consider rename to CONCATENATE_EMBEDDINGS
  CONCAT_EMBEDDINGS = 29,
  SKIP_GRAM = 30,
  CALL = 31,
  