Remove duplicate query from search messages

[panjd123]

Description

Fixed a small mistake in _stream_reduce. Just like in _stream_reduce_response, the duplicate query is unnecessary since it’s already passed as prompt.

Related Issues

N/A

Proposed Changes

• Removed the duplicate query from search messages in _stream_reduce

Checklist

• [x] I have tested these changes locally.
• [x] I have reviewed the code changes.
• [x] I have updated the documentation (if necessary).
• [x] I have added appropriate unit tests (if applicable).

Additional Notes

N/A