Remove flatten_parameters due to a bug at pytorch 0.4

layers/tacotron.py

@@ -176,7 +176,7 @@ class CBHG(nn.Module):
 
         # (B, T_in, in_features*2)
         # TODO: replace GRU with convolution as in Deep Voice 3
-        self.gru.flatten_parameters()
+        # self.gru.flatten_parameters()
         outputs, _ = self.gru(x)
         return outputs