Merge "Delete outdated sitemap file.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

* commit 'b7f5631156158c83d1eaa2e323267435edb66bf3':
  Delete outdated sitemap file. Updated version now in Piper: https://critique.corp.google.com/#review/122362396

Change-Id: I5314afc6a3a42f43bb2f0a1484712b170773db63