Summary
IPReputationEnableLoginCaptchaIfIPKnown was added as a stopgap in the context of {T389727}. We don't need this variable anymore, and should remove the variable and the code that uses it.
Acceptance criteria
- IPReputationEnableLoginCaptchaIfIPKnown is removed, along with any code that relies on it
- operations/mediawiki-config has IPReputationEnableLoginCaptchaIfIPKnown removed