No, he wasn't eliminated. The 77-year-old chose to leave, citing health reasons. According to Entertainment Weekly, Williams has chronic back issues and was told by his doctor not to continue. Lest you think that doesn't sound so bad, the erstwhile Lando Calrissian has also had two hip replacements, so the fact that he was competing at all was pretty impressive. The change meant that no one was eliminated on last night's episode, which featured dances about "the most memorable years of their lives." So memorable, in fact, that all of them get to stay on the show another week.
Williams had not exactly received stellar reviews, but we'll always have the beauty of his Star Wars-themed dance.