[w3c/webauthn] 2a23a1: Revert "Obfuscate Safetynet nonce"

  Branch: refs/heads/master
  Home:   https://github.com/w3c/webauthn
  Commit: 2a23a11ceb500b594324085338a0fea67b66dabf
      https://github.com/w3c/webauthn/commit/2a23a11ceb500b594324085338a0fea67b66dabf
  Author: Alexei Czeskis <aczeskis@google.com>
  Date:   2018-04-12 (Thu, 12 Apr 2018)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  Revert "Obfuscate Safetynet nonce"

Accidentally commited to master -- OR -- just showing you all how to
undo a commit to master in case you accidentally make this mistake on
accident and not on purpose like me...

This reverts commit 7c94792da69919fb1e7bef88954a6831f660bcc8.