Fix coding standard issue

src/app.js

@@ -52,7 +52,6 @@ document.querySelector('#optionViews').appendChild(debuggerView)
 var filesView = filesTab()
 document.querySelector('#optionViews').appendChild(filesView)
 
-
 // The event listener needs to be registered as early as possible, because the
 // parent will send the message upon the "load" event.
 var filesToLoad = null
@@ -430,12 +429,6 @@ var run = function () {
     return $filesEl.position().left
   }
 
-  function activeFilePos () {
-    var el = $filesEl.find('.active')
-    var l = el.position().left
-    return l
-  }
-
   function reAdjust () {
     if (widthOfList() + getLeftPosi() > widthOfVisible()) {
       $scrollerRight.fadeIn('fast')

src/app/debugger-tab.js

@@ -2,8 +2,6 @@ var yo = require('yo-yo')
 
 // -------------- styling ----------------------
 var csjs = require('csjs-inject')
-var styleGuide = require('./style-guide')
-var styles = styleGuide()
 
 var css = csjs`
   .debuggerTabView {

src/universal-dapp.js

@@ -9,12 +9,9 @@ var EventManager = require('./lib/eventManager')
 var crypto = require('crypto')
 var async = require('async')
 var TxRunner = require('./app/txRunner')
-var yo = require('yo-yo')
 
 // -------------- styling ----------------------
 var csjs = require('csjs-inject')
-var styleGuide = require('./app/style-guide')
-var styles = styleGuide()
 var css = csjs`
   .options {
       float: left;