For this answer, Where did the Millennium Falcon learn to communicate?, I remembered a bit of extra dialogue that was not in The Empire Strikes Back but was added for the radio play.
This just reminded me of another line, which I'm sure appeared in some adaptation of Return of the Jedi, even though it isn't in the movie. In this scene (which is essentially unchanged between all versions of the film), Jabba the Hutt mocks Luke, saying: "Your mind powers will not work on me boy." However, I remember a version of the story having a follow-up line that went something like: "I was killing your kind back when being a Jedi meant something." But what adaptation was this?