clean up code

cocoon-gloss.py

@@ -55,7 +55,6 @@ class CocoonConfig(datasets.BuilderConfig):
 
 
 class Cocoon(datasets.GeneratorBasedBuilder):
-    DEFAULT_WRITER_BATCH_SIZE = 1000
     BUILDER_CONFIGS = [CocoonConfig(name) for name in _ALL_CONFIGS]
 
     def _info(self):
@@ -85,12 +84,9 @@ class Cocoon(datasets.GeneratorBasedBuilder):
             task_templates=None,
         )
 
-    # Fleurs
     def _split_generators(self, dl_manager):
         splits = ["train", "dev", "test"]
 
-        # metadata_path = dl_manager.download_and_extract(_METADATA_URL)
-
         if self.config.name == "all":
             data_urls = {
                 split: [