Not really a deleted scene, more like a deleted idea. IF YOU HAVEN'T SEEN THE MOVIE YET, SKIP THE NEXT PARAGRAPH, SPOILER ALERT.
In the original script, some of the movie's events were written differently. The Snuggly Duckling was called The Jaunty Moose, instead of singing the pub thugs held a poetry reading, and Flynn and Rapunzel visited a fortune-telling monkey. All the drawings you see in the end credits were probably from storyboarding before the writer(s) made the changes. So to answer your question, this wasn't really a deleted scene because it was never 'filmed', but it was the original concept. (If you got the blu-ray edition of the movie the directors explain all this in one of the extras).