Potential fix for code scanning alert no. 4071: Unused import

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: groupthinking

mcp-servers/litert-mcp/server.py

@@ -11,7 +11,6 @@
 import logging
 import sys
 import os
-import subprocess
 from typing import Dict, List, Any, Optional
 
 # Configure logging