'RHOBH' Brandi Glanville's NOT Coming Back

Mauricio Umansky was first shocked and then scoffed at a new report claiming Brandi Glanville is making her triumphant return to "Real Housewives of Beverly Hills."

Mauricio was leaving Craig's in WeHo Wednesday night when our photog clearly surprised Kyle Richards' hubby, and he used all the vocal force he could muster to shoot it down.

Kyle and Brandi hate each other ... at least that's the way it played on the show.