Removing flag com.android.media.flags.enable_output_switcher_session_grouping from trunk_staging. This change was automatically created by rolling back a Gantry workflow. Bug: 388347018 Change-Id: I87040f9c649fe36055e38421148d4c359a908017 Flag: com.android.media.flags.enable_output_switcher_session_grouping Ignore-AOSP-First: AConfig change for future AOSP release