diff --git a/utils.js b/utils.js
deleted file mode 100644
index f31934f..0000000
--- a/utils.js
+++ /dev/null
@@ -1,94 +0,0 @@
-'use strict';
-
-
-let domActionBuffer = [];
-let flushTimeout;
-
-window.display = function () {
-  if (!flushTimeout) flushTimeout = setTimeout(flushDomQueue, 100);
-
-  domActionBuffer.push({ action: 'display', arguments: arguments });
-};
-
-window.clearDisplay = function () {
-  if (!flushTimeout) flushTimeout = setTimeout(flushDomQueue, 100);
-
-  domActionBuffer.push({ action: 'clearDisplay' });
-};
-
-function doClearDisplay() {
-  let outputTag = document.getElementById('output');
-  while (outputTag.firstChild) {
-    outputTag.removeChild(outputTag.firstChild);
-  }
-}
-
-function doDisplay() {
-  for (var i = 0; i < arguments.length; i++) {
-    if (typeof arguments[i] === 'object') displayObject(arguments[i]);
-    else displayValue(arguments[i], true);
-  }
-}
-
-function flushDomQueue() {
-  flushTimeout = null;
-
-  if (domActionBuffer.length === 0) return;
-
-  const domActions = [...domActionBuffer];
-  domActionBuffer = [];
-  for (let domAction of domActions) {
-    switch (domAction.action) {
-      case 'display':
-        doDisplay(...domAction.arguments);
-        break;
-      case 'clearDisplay':
-        doClearDisplay();
-        break;
-    }
-  }
-}
-
-function displayValue(value, addMargin, addPadding) {
-  let outputTag = document.getElementById('output');
-  let div = document.createElement('div');
-  div.innerHTML = value;
-  if (addMargin) div.style.marginBottom = '30px';
-  if (addPadding) div.style.paddingLeft = '30px';
-
-  outputTag.appendChild(div);
-}
-
-function displayObject(object) {
-  if (object == null) return displayValue('null');
-  displayValue(getTypeName(object) + ' {');
-  for (var propertyName in object) {
-    if (propertyName != 'constructor') {
-      displayValue(propertyName + ': ' + object[propertyName], false, true);
-    }
-  }
-  displayValue('}', true);
-}
-
-function getTypeName(object) {
-  var funcNameRegex = /function (.{1,})\(/;
-  var results = funcNameRegex.exec(object.constructor.toString());
-  return results && results.length > 1 ? results[1] : '';
-}
-
-let reloadJS = () => {
-  let oldScriptTag = document.getElementById('script');
-
-  let newScriptTag = document.createElement('script');
-  newScriptTag.id = 'script';
-  newScriptTag.src = 'demo.js';
-  newScriptTag.textContent = '//script';
-  var body = document.getElementsByTagName('body')[0];
-
-  oldScriptTag.remove();
-
-  clearDisplay();
-  body.appendChild(newScriptTag);
-};
-
-setInterval(reloadJS, 1000);