change split names in non-en settings

BiSECT.py

@@ -134,7 +134,7 @@ class BiSECT(datasets.GeneratorBasedBuilder):
 
             return [
                 datasets.SplitGenerator(
-                    name=f"{split}_{lang}",
+                    name=f"{split}",
                     gen_kwargs={
                         "filepath": os.path.join(data_dir, lang),
                         "split": split,