[SB] Remove launched status_bar_window_no_custom_touch flag.

Flag: EXEMPT launched flag removal
Bug: 391894499
Fixes: 424899798

Test: In one-handed mode, have a status bar chip and touch it -> verify
the chip tap behavior occurs
Test: In visual immersive mode (e.g. viewing a photo), swipe down once
from the top of the screen -> verify the shade opens

Change-Id: I57b317b4dce4a196083f514f7d0686cc5d6d5c3c