Merge "Merge "Delete everything from /sdk directory that is now in /studio....

Merge "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: 84bf8073 am: 34561c73 am: c1a9241a" into nyc-dev am: a8dc65dc
am: 19109d38

* commit '19109d38':
  Delete everything from /sdk directory that is now in /studio. Redirects are in https://critique.corp.google.com/#review/121297240

Change-Id: I8ea41b1d0a332a51fa19590964fabc8a8ebb5173