replace two XXX notes with comments

www/common/drive-ui.js

@@ -1925,7 +1925,11 @@ define([
             var $name = $('<span>', {'class': 'cp-app-drive-element-name'}).text(name);
             $element.append($name);
             if (getViewMode() === 'grid') {
-                $element.attr('title', name); // XXX Util.fixHTML
+                //console.error(name, Util.fixHTML(name));
+                // this is only safe because our build of tippy sets titles as
+                // 'textContent' instead of innerHTML, otherwise
+                // we would need to use Util.fixHTML
+                $element.attr('title', name);
             }
 
             var type = Messages.fm_link; // XXX new translation key ("Link")

www/common/outer/async-store.js

@@ -2062,10 +2062,12 @@ define([
             // Tell all the owners that the pad was deleted from the server
             var curvePublic;
             try {
+                // users in noDrive mode don't have a proxy and
+                // unregistered users don't have a curvePublic
                 curvePublic = store.proxy.curvePublic;
             } catch (err) {
                 console.error(err);
-                return; // XXX anons can't send notifications...
+                return;
             }
             m.forEach(function (obj) {
                 var mb = JSON.parse(obj);