[WebCryptoAPI] Secure Curves have no namedCurve
<rdar://problem/105666277>
Pull request: https://github.com/apple/WebKit/pull/404
Pull request: https://github.com/WebKit/WebKit/pull/10435
Committed 260599@main (8722815f4f9c): <https://commits.webkit.org/260599@main> Reviewed commits have been landed. Closing PR #10435 and removing active labels.