McDonald's is ending its AI voice ordering test. | Photo by Jonathan Maze.McDonald’s is ending its two-year-old test of drive-thru, automated order taking (AOT) that it has conducted with IBM and plans to remove the technology from the more than 100 restaurants that have been using it. The Chicago-based fast-food giant is ending this test without any sort of expansion, according to an email sent to franchisees on Thursday. Restaurant Business has obtained a copy of that email. But the company di...