Update mushroom.py

mushroom.py

@@ -311,7 +311,7 @@ class Mushroom(datasets.GeneratorBasedBuilder):
 
 
     def preprocess(self, data: pandas.DataFrame, config: str = DEFAULT_CONFIG) -> pandas.DataFrame:     
-        data.drop("stalk_root", axis="columns", inplace=True)
+        # data.drop("stalk_root", axis="columns", inplace=True)
         data = data[list(features_types_per_config[config].keys())]
 
         for feature in _ENCODING_DICS: