Clarify a sentence in the Iterators section of the book

[reddraggone9]

In the Iterators section of TRPL where it is talking about take(n) the page says, "Note that this has no side effect on the original iterator." It's not really clear what this is trying to convey.

[steveklabnik]

Yup, I wrote this. Probably should just remove the sentence, I agree.

[steveklabnik]

This was fixed