gerrit-config: Use google's robots.txt from AOSP

Change-Id: I91276bf2aada4918edf8425a9aac8ecc929e7adb
6 files changed
tree: 76de80cdcdebabd5ea687832edaa4dc07f74d524
  1. nginx/
  2. plugins/
  3. static/
  4. structure.yaml