Remove redundant SOCKET_SECURITY_API_KEY env var from Socket scan workflow

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: ping-huang1

.github/workflows/socket_reachability.yml

@@ -58,7 +58,6 @@ jobs:
 
       - name: Run Socket Security Scan
         env:
-          SOCKET_SECURITY_API_KEY: ${{ secrets.SOCKET_SECURITY_API_KEY }}
           SOCKET_SECURITY_API_TOKEN: ${{ secrets.SOCKET_SECURITY_API_KEY }}
           PYTHONUNBUFFERED: "1"
           ENABLE_REACH: ${{ github.event.inputs.enable_reachability }}