Remove componentWillReceiveProps, React 16.9.0 deprecates it.

[jimnanney]

React 16.9.0 deprecates the componentWillReceiveProps lifecycle method and throws warnings for it use.

Looking through Autowhatever.js, it appears it is only used for computing theme, sectionItems and sectionIterator. These could be moved to the render function, and if it is expensive, could be memoized.

[dezemand]

Just renaming to UNSAFE_componentWillReceiveProps will break older React versions.

[jimnanney]

My PR did not rename it, just moved the functionality into the render function.

[dezemand]

That’s right, however commit 652a909 did rename the function.