Remove unused struct import in export_binary

https://claude.ai/code/session_01U7Zn3csCPw6VJyMNfF59dz

Author: claude

src/ndi/fun/probe/export_binary.py

@@ -8,7 +8,6 @@
 
 from __future__ import annotations
 
-import struct
 from pathlib import Path
 from typing import Any