Remove deprecated from_encoded_point

[reaperhulk]

It's been deprecated since 2019 and this is a tracking issue for removing it.

[ronf]

Can you confirm that this is removing ec.EllipticCurvePublicNumbers.from_encoded_point() and not touching ec.EllipticCurvePublicKey.from_encoded_point() which replaced it?

You might want to also consider removing ec.EllipticCurvePublicNumbers.encode_point(), which was deprecated at the same time.

[alex]

Correct on both counts!

[ronf]

Thanks!