Is George Lopez a diva? On Friday, June 7, the comedian was dissed by the Eagle Mountain Casino in Porterville, Calif., after he allegedly left his show early. “Tonight, George Lopez let down his fans and sold out the audience by walking out and ending his show 30 minutes early. George hired his own private security that could have easily escorted any hecklers out,” the venue penned on Facebook following the incident. “We had a pre-show meeting to have a plan in place for hecklers. He could have provided us any opportunity to allow our security and team to escort any hecklers out since his own…