message: Remove outdated TODO in TFLite
  Variables are already supported (gated via experimental
  flags).
diff: @@ -25,9 +25,6 @@ namespace resource {
  // A resource variable class. It's similar to TensorFlow Resource
  // Variable, but it's identified with int32 ID in TFLite (instead of
  // using Resource handle like TensorFlow).
  -//
  -// TODO(b/137042749): TFLite converter cannot convert variables yet.
  -// Variable functionalities are only tested with unit tests now.
  class ResourceVariable : public ResourceBase {
  public:
  ResourceVariable();
  