CSF documentation has redundant code

[willyrk1]

Describe the bug
The CSF API documentation (https://storybook.js.org/docs/react/api/csf) has redundant code blocks:

Now consider the same example, re-written with args:

<Code snippet 1>

At first blush, this might seem no better than the original example. However, if we add the Docs addon and configure the Actions addon appropriately, we can write:

<Code snippet 2>

...except that Code snippet 1 and Code snippet 2 are exactly identical. This doesn't seem like the intention.

[jonniebigodes]

@willyrk1 thanks for bringing this to our attention. This section is indeed a bit redundant and was left in during the updates for 6.4. I've pushed a pull request that fixes this issue.

Have a great day!
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