Merge "Delete everything from /sdk directory that is now in /studio. Redirects are in https://critique.corp.google.com/#review/121297240" into mnc-mr-docs am: 84bf8073a8
am: 34561c73a2

* commit '34561c73a2136d552121b0aec0c78b307eebac52':
  Delete everything from /sdk directory that is now in /studio. Redirects are in https://critique.corp.google.com/#review/121297240

Change-Id: Iddf4ed155928dcbd897d31fff7bbff4cb0b04157