Cher’s first-born child, Chaz Bono, is keeping his distance from the singer and is reconsidering inviting his mom to his nuptials, according to a sensational report. Insiders close to the Dancing With the Stars alum claim that he and Shara Blue Mathes are “removing” the Believe hitmaker from the guest list entirely, RadarOnline.com has learned. The lovebirds want a “simple ceremony with none of Cher’s theatrics,” sources told In Touch Weekly, claiming Bono’s relationship with his mom has been estranged ever since he came out as gay and transitioned in 2008. “When Chaz went through the transiti…