remove a temporary comment and a hardcoded translation

www/admin/inner.js

@@ -331,7 +331,7 @@ define([
     };
 
     // Msg.admin_registrationHint, .admin_registrationTitle
-    create['registration'] = makeAdminCheckbox({ // XXX
+    create['registration'] = makeAdminCheckbox({
         key: 'registration',
         getState: function () {
             return APP.instanceStatus.restrictRegistration;

www/common/common-ui-elements.js

@@ -523,7 +523,6 @@ define([
         UI.openCustomModal(modal);
     };
 
-    Messages.ui_openDirectly = "This functionality is not available when CryptPad is embedded in another site.  Open this pad in its own window?";// XXX
     UIElements.openDirectlyConfirmation = function (common, cb) {
         cb = cb || Util.noop;
         UI.confirm(h('p', Messages.ui_openDirectly), yes => {