chore: revert caching logic

Author: Michael Brewer

aws_lambda_powertools/utilities/data_classes/kinesis_stream_event.py

@@ -41,9 +41,7 @@ def data_as_text(self) -> str:
 
     def data_as_json(self) -> dict:
         """Decode binary encoded data as json"""
-        if self._json_data is None:
-            self._json_data = json.loads(self.data_as_text())
-        return self._json_data
+        return json.loads(self.data_as_text())
 
 
 class KinesisStreamRecord(DictWrapper):

tests/functional/test_data_classes.py

@@ -1125,7 +1125,6 @@ def test_kinesis_stream_event_json_data():
     event = KinesisStreamEvent({"Records": [{"kinesis": {"data": data}}]})
     record = next(event.records)
     assert record.kinesis.data_as_json() == json_value
-    assert record.kinesis.data_as_json() == json_value  # cached lookup
 
 
 def test_alb_event():