remove fct convert_df_to_datasetdict() from utils file

src/utils.py

@@ -1,14 +0,0 @@
-from datasets import DatasetDict, Dataset
-import pandas as pd
-
-
-def convert_df_to_dataset_dict(df_train:pd.DataFrame, df_test:pd.DataFrame)-> DatasetDict:
-    mapper = {"#2_tweet": "tweet", "#3_country_label": "label"}
-    df_train = df_train.rename(columns=mapper)
-    df_test = df_test.rename(columns=mapper)
-
-    columns_to_keep = ["tweet", "label"]
-    train_dataset = Dataset.from_pandas(df_train[columns_to_keep])
-    test_dataset = Dataset.from_pandas(df_test[columns_to_keep])
-    
-    return DatasetDict({'train': train_dataset, 'test': test_dataset})