fix bugs

tensor2tensor/models/transformer_dla.py

@@ -466,6 +466,4 @@ def transformer_dla_base25_shared():
   hparams = transformer_dla_base()
   hparams.shared_decoder_input_and_softmax_weights = int(True)
   hparams.encoder_layers = 25
-  return hparams
-
   return hparams
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