Don't move bubble to full screen from launcher

This change removes the logic around moving a bubble to full screen
when called from launcher. The current transition requires the task
to be visible when moving it from bubble to full screen.

Flag: com.android.wm.shell.enable_bubble_to_fullscreen
Bug: 388858013
Test: treehugger
Change-Id: I9f1c3e696b1912254d5e8797705860e332844be9