Say good-bye to dirty hookups.Photo: Yun Cee NgThough rumor had Double Happiness and its upstairs bar Palais Royale closing in late August to make way for former Tenjune promoter Emma Cleary’s restaurant and lounge Femme Fatale, it remains open. Now we can report that September 29 will be the place’s last night, when we can only assume that nostalgic types who did their first bump in the bathroom will tear the abacuses from the wall before the double doors are chained shut once and for all. Don’t like the idea of another velvet rope in the neighborhood? Just remember, the current incarnation was supposedly a gay social club and mafia hangout. Emma’s door will be a breeze in comparison.