Facebook JS SDK loaded but not used?

[pbinkley]

The Facebook JS SDK is loaded at

ed/_layouts/default.html

Lines 70 to 86 in c62010e

	<!-- Facebook SDK for JavaScript -->
	<script>
	window.fbAsyncInit = function() {
	FB.init({
	appId : '589495744558280',
	xfbml : true,
	version : 'v2.6'
	});
	};
	(function(d, s, id){
	var js, fjs = d.getElementsByTagName(s)[0];
	if (d.getElementById(id)) {return;}
	js = d.createElement(s); js.id = id;
	js.src = "//connect.facebook.net/en_US/sdk.js";
	fjs.parentNode.insertBefore(js, fjs);
	}(document, 'script', 'facebook-jssdk'));

, but as far as I can tell it's only referenced in some meta tags

ed/_includes/head.html

Line 36 in c62010e

<meta property="fb:admins" content="elotroalex" />

(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?