[webauthn] Merged Pull Request: Remove mentions of ECDAA.

equalsJeffH has just merged agl's pull request 1418 for https://github.com/w3c/webauthn:

== Remove mentions of ECDAA. ==
Fixes #1410


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<a href="https://pr-preview.s3.amazonaws.com/agl/webauthn/pull/1418.html" title="Last updated on May 24, 2020, 9:03 PM UTC (96ab91a)">Preview</a> | <a href="https://pr-preview.s3.amazonaws.com/w3c/webauthn/1418/61ad26a...agl:96ab91a.html" title="Last updated on May 24, 2020, 9:03 PM UTC (96ab91a)">Diff</a>

See https://github.com/w3c/webauthn/pull/1418