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

Merge "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: 5a736b31" into nyc-mr1-dev-plus-aosp
am: a5966685

* commit 'a5966685':

Change-Id: Ic8b04bde5853b985408730ccd15479e154b5caf0