GoogleToNewSync::cleanExtraEventInfo

private function cleanExtraEventInfo(array $eventIds): void
{
	global $DB;
	$DB->Query("
		UPDATE b_calendar_event 
		SET G_EVENT_ID = null,
	    CAL_DAV_LABEL = null,
	    SYNC_STATUS = null
		WHERE ID IN (" . implode(',', $eventIds) . ");
	");
}