Remove unnecessary null

[edvinerikson]

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1. Fork the repository and create your branch from master.
2. If you've added code that should be tested, add tests!
3. If you've changed APIs, update the documentation.
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[gaearon]

Now that I think of it why do we ever return null now? Let's change it to always fall back to "Component".

[edvinerikson]

Not sure what circleci is up to but I ran the tests and flow locally without any errors

[gaearon]

k

[sophiebits]

You don't think Unknown is nicer? We use that as a fallback for the stack, for instance.

[gaearon]

That probably broke the CI :P.
I agree, let's change to "Unknown".

[edvinerikson]

should I send a PR?

[gaearon]

Please do