Remove reference to "API Campaign" from IAM creation

[Zaxcoding]

Pull Request/Issue Resolution

Description of Change:

A support ticket came in that brought up that our documentation says you can create IAMs as an API campaign but the UI does not allow you to do this.

We verified in the code and the backend does not support creating IAMs, and the rest of the documentation agrees with this fact.

No ticket - I'm on-call and this is a minor fix.

Is this change associated with a Braze feature/product release?

• Yes (Insert Feature Release Date Here)
• No

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[josh-mccrowell-braze]

Thanks for raising this, @Zaxcoding !

Tagging in @lydia-xie mostly as an FYI, the edit is small and looks good from my perspective.

[lydia-xie]

lgtm!