message: [XLA] Remove a comment which is no longer true
  Aliasing is now supported on CPU/GPU.
diff: @@ -337,8 +337,6 @@ class XlaBuilder {
  // Note: Aliasing API is 'may-alias' and only donated buffer at runtime will
  // be aliased with output. If a buffer is not donated at runtime, a copy will
  // be inserted by XLA to prevent buffer clobbering.
  - //
  - // Only works on TPU backend.
  void SetUpAlias(const ShapeIndex& output_index, int64 param_number,
  const ShapeIndex& param_index) {
  input_output_aliases_.push_back({output_index, param_number, param_index});
  