Removing flag com.android.wm.shell.enable_pip2 from trunk_staging.

This change was automatically created by rolling back a Gantry workflow.

Bug: 311462191
Change-Id: I2e4bfed40d7c32009160c0bee24ae8bbf1aa7612
Flag: com.android.wm.shell.enable_pip2
Ignore-AOSP-First: AConfig change for future AOSP release
1 file changed