Facebook JS SDK loaded but not used?

[pbinkley]

The Facebook JS SDK is loaded at https://github.com/minicomp/ed/blob/c62010ec9e71818655f398b2a8476510020b618f/_layouts/default.html#L70-L86 , but as far as I can tell it's only referenced in some meta tags https://github.com/minicomp/ed/blob/c62010ec9e71818655f398b2a8476510020b618f/_includes/head.html#L36 (though I'm not sure whether those are related to the sdk or general Facebook tagging). The wiki mentions moving its config into _config.yml https://github.com/minicomp/ed/wiki/Version-Roadmap#_configyml , but there's nothing there in the out-of-the-box config.

Is it safe to remove it? Or could its inclusion be made conditional on having the config present in _config.yml?