message: Removed old dynamic learning rate support code.
diff: @@ -18,8 +18,10 @@ message DynamicLearningRate {
  message LearningRate {
  oneof learning_rate {
  float constant = 1;
  - DynamicLearningRate dynamic = 2;
  + // DynamicLearningRate dynamic = 2; -- disabled while code is being
  + // rewritten.
  }
  + reserved 2;
  }
  message AdagradParameters {
  