Anthony Weiner’s sexting pal Sydney Leathers’ 15 minutes are officially up. Firing back at The Post’s report that her client gave a lackluster appearance at HeadQuarters strip club Tuesday, Leathers’ rep declared that was impossible because no one was there. “There were no patrons in the club for the entire two hours she was there,” her rep told us, adding the somewhat weak explanation: “They booked it three days before and did no advertising.” Leathers’ rep added, “The club was very rundown and empty . . . Sydney is just happy she made $5,000 and is done with them.” The club — which says there were 10 patrons — is laying the blame on Leathers, adding that she refused to dance on stage or on laps and, to the shock of all, even declined to pose for photos with a Weiner look-alike and a hot-dog cart. “We tried our best to accommodate them, but it was like talking to a brick wall,” an HQ rep tells us of Leathers and her team. “They put her on some kind of pedestal . . . They literally wanted to charge people $20 just to take a picture with her.”