paper preperations and notebooks, optuna callbacks

models/performer.py

@@ -130,8 +130,6 @@ try:
             tensor = self.mlp_head(tensor)
             return Namespace(main_out=tensor)
 
-        def additional_scores(self, outputs):
-            return MultiClassScores(self)(outputs)
 
 except ImportError:  # pragma: do not provide model class
     print('You want to use `performer_pytorch` plugins which are not installed yet,'  # pragma: no-cover