Merge "Delete outdated sitemap file. Updated version now in Piper: https://critique.corp.google.com/#review/122362396" into mnc-mr-docs am: b7f5631156
am: 0c5c9747a7

* commit '0c5c9747a71bbb33ebf20ecc1f599a60a58238af':
  Delete outdated sitemap file. Updated version now in Piper: https://critique.corp.google.com/#review/122362396

Change-Id: I408d30923a3ef12375275f5d60dc9d55bf5e6548