Removing flag com.android.window.flags.scrolling_from_letterbox from trunk_staging. This change was automatically created by rolling back a Gantry workflow. Bug: 353697519 Change-Id: Ice208481e624b9dd2fc3e14d53d8a21869deeb00 Flag: com.android.window.flags.scrolling_from_letterbox Ignore-AOSP-First: AConfig change for future AOSP release