Revert "Move focused task to front when attaching RecentsView"

This reverts commit 86ac825061d48d169998485f419208e851ee402c.

Reason for revert: Causes crash in fallback recents

Bug: 192471181
Change-Id: I41d2b5c87259568f21e6417be3a6dea5dd1a0864
3 files changed