Merge "Remove new task flag when launching unicorn enrollment." into sc-dev...

Merge "Remove new task flag when launching unicorn enrollment." into sc-dev am: afe9dad1 am: dfb01e07 am: 76653e07

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15521773

Change-Id: I7f263bfa1a6e3027d77413576ed4c0a88a15f643