Remove wc api 🎉

[psealock]

Fixes #3387

Remove wc-api, including imports of withSelect and various constants.

Detailed test instructions:

1. Boot up the app and make sure webpack is happy.
2. Poke around and make sure no fatal errors occur.

Changelog Note:

• Dev: remove wc-api in favor of @woocommerce/data

[samueljseay]

@psealock I haven't tested this yet, but after a global search locally I notice that after this removal there is one more mention of the fresh data framework, to import a constant SECOND, which is just a variable with value 1000 😁

Could we as part of this remove that one import and also delete fresh data from the package.json? Or in a follow up perhaps. I don't know if fresh data gets tree shaken but if it doesn't, removing it would save us on payload.

[psealock]

Could we as part of this remove that one import and also delete fresh data from the package.json?

Thanks for finding that @samueljseay, fixed in 7de71f5

[becdetat]

Looks great 👍

[timmyc]