remove weight norm for melgan generator

vocoder/models/melgan_generator.py

@@ -87,3 +87,12 @@ class MelganGenerator(nn.Module):
             (self.inference_padding, self.inference_padding),
             'replicate')
         return self.layers(cond_features)
+
+    def remove_weight_norm(self):
+        for _, layer in enumerate(self.layers):
+            if len(layer.state_dict()) != 0:
+                try:
+                    nn.utils.remove_weight_norm(layer)
+                except ValueError:
+                    layer.remove_weight_norm()
+