change _generate_examples function according to kilt_task

Hansel.py

@@ -148,24 +148,6 @@ class Hansel(datasets.GeneratorBasedBuilder):
     def _generate_examples(self, data_file, split):
         logger.info("generating examples from = %s", data_file)
         with open(data_file, encoding="utf-8") as f:
-            for line in f:
+            for idx, line in enumerate(f):
                 temDict = json.loads(line)
-                key = temDict["id"]
-                if "hansel" in self.config.name:
-                    yield key, {
-                                "text": temDict["text"],
-                                "start": temDict["start"],
-                                "end": temDict["end"],
-                                "mention": temDict["mention"],
-                                "gold_id": temDict["gold_id"],
-                                "source": temDict["source"],
-                                "domain": temDict["domain"],
-                            }
-                else:
-                    yield key, {
-                                "text": temDict["text"],
-                                "start": temDict["start"],
-                                "end": temDict["end"],
-                                "mention": temDict["mention"],
-                                "gold_id": temDict["gold_id"],
-                            }
+                yield idx, temDict