Remove split preservation for resampling converters

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: Felipedino

DashAI/back/converters/imbalanced_learn_wrapper.py

@@ -132,7 +132,7 @@ def transform(
             ds_types.update(y_types)
         try:
             dataset = DashAIDataset(
-                self._resampled_table, types=ds_types, splits=x.splits
+                self._resampled_table, types=ds_types, splits={}
             )
             return dataset