Remove Notification atom

        BiometricAcquired biometric_acquired = 87;

        BiometricAuthenticated biometric_authenticated = 88;

        BiometricErrorOccurred biometric_error_occurred = 89;

        Notification notification = 90;

        // Atom number 90 is available for use.

        BatteryHealthSnapshot battery_health_snapshot = 91;

        SlowIo slow_io = 92;

        BatteryCausedShutdown battery_caused_shutdown = 93;

    optional bool success = 4;

}

message Notification {

    // Type of notification event.

    enum Type {

        TYPE_UNKNOWN = 0;

        // Notification became visible to the user.

        TYPE_OPEN = 1;

        // Notification became hidden.

        TYPE_CLOSE = 2;

        // Notification switched to detail mode.

        TYPE_DETAIL = 3;

        // Notification was clicked.

        TYPE_ACTION = 4;

        // Notification was dismissed.

        TYPE_DISMISS = 5;

        // Notification switched to summary mode. The enum value of 14 is to

        // match that of metrics_constants.

        TYPE_COLLAPSE = 14;

    }

    optional Type type = 1;

    // Package name associated with the notification.

    optional string package_name = 2;

    // Tag associated with notification.

    optional string tag = 3;

    // Application-supplied ID associated with the notification.

    optional int32 id = 4;

    // Index of notification in the notification panel.

    optional int32 shade_index = 5;

    // The number of notifications in the notification panel.

    optional int32 shade_count = 6;

    // Importance for the notification.

    optional int32 importance = 7;

    // ID for the notification channel.

    optional string channel_id = 8;

    // Importance for the notification channel.

    optional int32 channel_importance = 9;

    // Application-supplied ID associated with the notifications group.

    optional string group_id = 10;

    // Whether notification was a group summary.

    optional bool group_summary = 11;

    // Reason for dismissal of a notification. This field is only meaningful for

    // TYPE_DISMISS events.

    optional int32 dismiss_reason = 12;

    // The first post time of notification, stable across updates.

    optional int64 creation_millis = 13;

    // The most recent interruption time, or the creation time if no updates.

    // Differs from update_millis because updates are filtered based on whether

    // they actually interrupted the user.

    optional int64 interruption_millis = 14;

    // The most recent update time, or the creation time if no updates.

    optional int64 update_millis = 15;

    // The most recent visibility event.

    optional int64 visible_millis = 16;

}

/*

 * Logs when a flag flip update occurrs. Used for mainline modules that update via flag flips.

 */