Adele made a shocking confession about her drinking habits while performing at her Las Vegas, Nev., residency over the weekend, RadarOnline.com can reveal. She told the audience: “I don’t drink as much as I’d like to, but in two weeks I’m retiring, I’m going to become a day drinker. The thing is, I can’t really handle liquor in general. I can drink 25 bottles of white wine in one night and I’ll be fine.” She added: “I will have a normal conversation with you.” In the past, Adele, 36, has been honest about cutting back on her liquor consumption, but she still is fond of enjoying an adult bevera…