Update configuration.py

configuration.py

@@ -291,5 +291,4 @@ class ExtendedMptConfig(PretrainedConfig):
         self.use_cache = use_cache
         self.initializer_range = initializer_range
         self.use_external_mind = use_external_mind
-        self.use_external_mind_by_layer = use_external_mind_by_layer
         super().__init__(**kwargs)