Merge "Clean up demo dir when leaving demo mode" into nyc-mr1-dev
am: 2c5cbd4012

* commit '2c5cbd4012aef736c94a7afc84a778623c639d10':
  Clean up demo dir when leaving demo mode

Change-Id: Ia7891f8e5106130d669a1daa7fcc691db1f5e4c7