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