remove some hardcoded translations

www/admin/inner.js

@@ -931,14 +931,6 @@ define([
         return;
     };
 
-    Messages.admin_cat_performance = "Performance"; // XXX admin
-    Messages.admin_performanceProfilingHint = "Measure the running time of various server tasks by type"; // XXX admin
-    Messages.admin_performanceProfilingTitle = "Performance"; // XXX admin
-
-    Messages.admin_performanceKeyHeading = 'KEY'; // XXX admin
-    Messages.admin_performanceTimeHeading = 'Time (seconds)'; // XXX admin
-    Messages.admin_performancePercentHeading = '%'; // XXX admin
-
     create['performance-profiling'] = function () {
         var $div = makeBlock('performance-profiling');
 

www/whiteboard/inner.js

@@ -525,9 +525,6 @@ define([
         framework.start();
     };
 
-
-    Messages.undo = "Undo"; // XXX
-    Messages.redo = "Redo"; // XXX
     var initialContent = function () {
         return [
             h('div#cp-toolbar.cp-toolbar-container'),