Deprecate captcha moat
CAPTCHAs have being problematic for many users and easy for censors to block. As part of the BridgeDB deprecation might be time to deprecate captcha moat.
This brings some questions:
- Is the current Circumvention Settings API enough to replace the existing use of captcha moat?
- Are we ok using the settings bridge pool in places where we've being using the moat pool? So deprecate that pool.