[w3c/webauthn] 7fa879: rmove self attstn from U2F attstn format (#781)

  Branch: refs/heads/master
  Home:   https://github.com/w3c/webauthn
  Commit: 7fa8792b7be410c4ddb632056a23357935a2c520
      https://github.com/w3c/webauthn/commit/7fa8792b7be410c4ddb632056a23357935a2c520
  Author: =JeffH <mobileuser@kingsmountain.com>
  Date:   2018-02-07 (Wed, 07 Feb 2018)

  Changed paths:
    M index.bs

  Log Message:
  -----------
  rmove self attstn from U2F attstn format (#781)