Revert "Re-work additional auth token (otp) so that 3rd-parties have not have"

This reverts commit af8e610016591b7eeab0875ca5d132589f50611c.
Revert "Add otp auth option to fasproxy and flask_fas as well."

This reverts commit 2db1d6275bdc89c8b4472438f715703b1f4e1ee8.
Revert "Add OTP as Authentication option, must be used with username and password."

This reverts commit bac81cc7872571092a7cc2727998142c45e83409.

Conflicts:
	fedora/client/proxyclient.py
Merge pull request #62 from fedora-infra/feature/untight_2fa

Feature/untight 2fa