Removed google+ link.

index.html

@@ -240,8 +240,7 @@
 				<a href="https://stackoverflow.com/questions/tagged/three.js">questions</a><br />
 				<a href="https://discourse.threejs.org/">forum</a><br />
 				<a href="http://webchat.freenode.net/?channels=three.js">irc</a><br />
-				<a href="https://threejs-slack.herokuapp.com">slack</a><br />
-				<a href="https://plus.google.com/+ThreejsOrg">google+</a>
+				<a href="https://threejs-slack.herokuapp.com">slack</a>
 
 				<div id="editor">
 					<a href="editor/"><img src="files/editor.png" width="127" height="89" /></a>