Hide email form row by the JS code.

boards/static/js/main.js

@@ -23,7 +23,17 b''
  for the JavaScript code in this page.
  */
 
+/**
+ * An email is a hidden file to prevent spam bots from posting. It has to be
+ * hidden.
+ */
+function hideEmailFromForm() {
+    $('.form-email').parent().parent().hide();
+}
+
 $( document ).ready(function() {
+    hideEmailFromForm();
+
     $("a[href='#top']").click(function() {
         $("html, body").animate({ scrollTop: 0 }, "slow");
         return false;