Use analytics.identify instead of the old utility function

common/static/js/src/utility.js

@@ -40,10 +40,3 @@ window.rewriteStaticLinks = function(content, from, to) {
     var regex = new RegExp("(https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}([-a-zA-Z0-9@:%_\+.~#?&//=]*))?"+fromRe, 'g');
     return content.replace(regex, replacer);
 };
-
-window.identifyUser = function(userID, email, username) {
-    analytics.identify(userID, {
-        email: email,
-        username: username
-    });    
-};

lms/templates/widgets/segment-io.html

@@ -7,7 +7,10 @@
   analytics.page();
 
   % if user.is_authenticated():
-    window.identifyUser("${user.id}", "${user.email}", "${user.username}");
+    analytics.identify("${user.id}", {
+      email: "${user.email}",
+      username: "${user.username}"
+    });
   % endif
 </script>
 <!-- end Segment.io -->