Fix references in tests

test/integration/lib/idStore-migrator-test.js

@@ -1,8 +1,8 @@
 const ObservableStore = require('obs-store')
 const ConfigManager = require('../../../app/scripts/lib/config-manager')
 const IdStoreMigrator = require('../../../app/scripts/lib/idStore-migrator')
-const SimpleKeyring = require('../../../app/scripts/keyrings/simple')
-const normalize = require('../../../app/scripts/lib/sig-util').normalize
+const SimpleKeyring = require('eth-keyring-simple')
+const normalize = require('eth-sig-util').normalize
 
 const oldStyleVault = require('../mocks/oldVault.json').data
 const badStyleVault = require('../mocks/badVault.json').data