Remove flag android.app.skip_ref_content_provider from trunk_staging. This change was automatically created by rolling back a Gantry workflow. Bug: 395544023 Flag: android.app.skip_ref_content_provider Ignore-AOSP-First: AConfig change for future AOSP release Change-Id: If6778e3738a5c45ddffc0ab1f972d48be50f6ecb