Removed `all` from splits

SzegedNER.py

@@ -109,7 +109,7 @@ class SzegedNER(GeneratorBasedBuilder):
     def _split_generators(self, dl_manager: DownloadManager):
         url = f"{self.base_path}{self.config.data_dir}"
 
-        path = dl_manager.download({key: f"{url}{key}.csv" for key in ["train", "validation", "test", "all"]})
+        path = dl_manager.download({key: f"{url}{key}.csv" for key in ["train", "validation", "test"]})
         return [
             SplitGenerator(
                 name=Split.TRAIN,