Remove ethereumjs-account as it isn't needed anymore

package.json

@@ -13,7 +13,6 @@
     "merkle-patricia-tree": "^2.1.2",
     "ethereumjs-util": "^4.4.0",
     "ethereumjs-tx": "^1.1.1",
-    "ethereumjs-account": "^2.0.2",
     "ethereumjs-abi": "^0.6.1",
     "web3": "^0.15.3",
     "jquery": "^2.2.0",

src/universal-dapp.js

@@ -3,7 +3,6 @@ var EthJSVM = require('ethereumjs-vm');
 var Trie = require('merkle-patricia-tree');
 var ethJSUtil = require('ethereumjs-util');
 var EthJSTX = require('ethereumjs-tx');
-var EthJSAccount = require('ethereumjs-account');
 var ethJSABI = require('ethereumjs-abi');
 var EthJSBlock = require('ethereumjs-block');
 var web3 = require('./web3-adapter.js');