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 am: a029f6f6

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

Change-Id: I227641155880b216cd8946b88acf442c4fa33a39