Fixed wipeData() so it doesn't depend on device_admin.

That method can be called by apps that have the MASTER_CLEAR
permission, even if the device doesn't support device_admin

Test: manual verification using automotive's KitchenSink app
Fixes: 190861794

Change-Id: I97ddb18580593e7b23f8fb55b3346049a2261144
1 file changed