Remove flag com.android.wm.shell.enable_flexible_two_app_split from trunk_staging. This change was automatically created by rolling back a Gantry workflow. Bug: 349828130 Flag: com.android.wm.shell.enable_flexible_two_app_split Ignore-AOSP-First: AConfig change for future AOSP release Change-Id: I2e00120be3acd529b11c7f0731441e26dd6b4a2b