Final answer:
The claim that Goldman omitted the history of Florin and wrote only about Prince Humperdink is a fictional narrative device used in 'The Princess Bride', and is thus false in reality.
Step-by-step explanation:
The statement about Goldman cutting out the Florinese history and focusing only on Prince Humperdink is false. The character being referred to is William Goldman, who is the author and also a narrator within the story of 'The Princess Bride'.
This narrative device is part of the fictional frame Goldman creates for the story, where he claims to be presenting an abridged version of an older text by S. Morgenstern that includes a lot of extraneous material like the history of Florin.
In the context of 'The Princess Bride', Goldman humorously insists that he has edited out the dull parts, such as the lengthy history of Florin, to focus on the 'good parts' of the story, which entail the adventures of characters like Prince Humperdink, Buttercup, and Westley. Therefore, the assertion is a part of Goldman's fictional narrative strategy.