Remove duplicate configure_for in multi dataset

Author: CeliaBenquet

cebra/data/multi_session.py

@@ -106,11 +106,6 @@ def load_batch(self, index: BatchIndex) -> List[Batch]:
             ) for session_id, session in enumerate(self.iter_sessions())
         ]
 
-    def configure_for(self, model):
-        self.offset = model.get_offset()
-        for session in self.iter_sessions():
-            session.configure_for(model)
-
     def configure_for(self, model: "cebra.models.Model"):
         """Configure the dataset offset for the provided model.