fix(ollama_chat): drop no-op except to stay under the complexity limit

chunk_parser was exactly at the C901 limit, so the new error check pushed it over. The except Exception: raise e block only re-raised the same error, so removing it keeps behavior the same and brings the function back to the limit.

litellm/llms/ollama/chat/transformation.py

@@ -567,5 +567,3 @@ class OllamaChatCompletionResponseIterator(BaseModelResponseIterator):
                 status_code=400,
                 headers={"Content-Type": "application/json"},
             )
-        except Exception as e:
-            raise e