move single function from util file into udapp

src/app/ui/util.js

@@ -1,23 +0,0 @@
-var TreeView = require('./TreeView')
-var ethJSUtil = require('ethereumjs-util')
-var BN = ethJSUtil.BN
-var remixLib = require('remix-lib')
-var txFormat = remixLib.execution.txFormat
-
-module.exports = {
-  decodeResponseToTreeView: function (response, fnabi) {
-    var treeView = new TreeView({
-      extractData: (item, parent, key) => {
-        var ret = {}
-        if (BN.isBN(item)) {
-          ret.self = item.toString(10)
-          ret.children = []
-        } else {
-          ret = treeView.extractDataDefault(item, parent, key)
-        }
-        return ret
-      }
-    })
-    return treeView.render(txFormat.decodeResponse(response, fnabi))
-  }
-}

src/universal-dapp.js

@@ -14,13 +14,30 @@ var txFormat = remixLib.execution.txFormat
 var txHelper = remixLib.execution.txHelper
 var executionContext = require('./execution-context')
 var modalCustom = require('./app/ui/modal-dialog-custom')
-var uiUtil = require('./app/ui/util')
 var globalRegistry = require('./global/registry')
 
 var modalDialog = require('./app/ui/modaldialog')
 var typeConversion = remixLib.execution.typeConversion
 var confirmDialog = require('./app/execution/confirmDialog')
 
+var TreeView = require('./app/ui/TreeView')
+
+function decodeResponseToTreeView (response, fnabi) {
+  var treeView = new TreeView({
+    extractData: (item, parent, key) => {
+      var ret = {}
+      if (BN.isBN(item)) {
+        ret.self = item.toString(10)
+        ret.children = []
+      } else {
+        ret = treeView.extractDataDefault(item, parent, key)
+      }
+      return ret
+    }
+  })
+  return treeView.render(txFormat.decodeResponse(response, fnabi))
+}
+
 function UniversalDApp () {
   this.event = new EventManager()
   var self = this
@@ -219,7 +236,7 @@ UniversalDApp.prototype.call = function (isUserAction, args, value, lookupOnly,
             }
           }
           if (lookupOnly) {
-            var decoded = uiUtil.decodeResponseToTreeView(executionContext.isVM() ? txResult.result.vm.return : ethJSUtil.toBuffer(txResult.result), args.funABI)
+            var decoded = decodeResponseToTreeView(executionContext.isVM() ? txResult.result.vm.return : ethJSUtil.toBuffer(txResult.result), args.funABI)
             outputCb(decoded)
           }
         } else {