remove more XXX notes

customize.dist/pages.js

@@ -150,7 +150,7 @@ define([
     Pages.infopageFooter = function () {
         var donateButton;
         if (!ApiConfig.removeDonateButton) {
-            donateButton = footLink('https://opencollective.com/cryptpad/contribute/', 'footer_donate', null, 'money'); // XXX DB: add OpenCollective icon // XXX
+            donateButton = footLink('https://opencollective.com/cryptpad/contribute/', 'footer_donate', null, 'money'); // TODO migrate to forkawesome and use the OpenCollective icon
         }
 
         return h('footer.cp-footer', [

www/checkup/main.js

@@ -1427,7 +1427,7 @@ define([
         '/code/',
         '/pad/index.html',
     ].forEach(url => {
-        assert(function (cb, msg) { // XXX
+        assert(function (cb, msg) {
             try {
                 url = new URL(url, ApiConfig.httpUnsafeOrigin).href;
             } catch (err) {