Amazon supports hardware 2FA

[They even will sell you a Gemalto tamper evident 2FA device!](http://onlinenoram.gemalto.com/)
Merge pull request #446 from robbiet480/patch-1

Amazon supports hardware 2FA
Remove eBay SMS

As per an email I received from Michael Kidd. He contacted support and confirmed SMS 2FA isn't available for eBay.