Remove stubComponent for old Mascot

Changes in #7893 has prevented the need to stub it out.

Change logout to lock in account-menu test

test/lib/render-helpers.js

@@ -1,5 +1,4 @@
 import React from 'react'
-import sinon from 'sinon'
 import { mount } from 'enzyme'
 import { MemoryRouter } from 'react-router-dom'
 import PropTypes from 'prop-types'
@@ -49,24 +48,3 @@ export function mountWithRouter (component, store = {}, pathname = '/') {
 
   return mount(<Wrapper />, createContext())
 }
-
-export function stubComponent (componentClass) {
-
-  const lifecycleMethods = [
-    'render',
-    'componentWillMount',
-    'componentDidMount',
-    'componentWillReceiveProps',
-    'shouldComponentUpdate',
-    'componentWillUpdate',
-    'componentDidUpdate',
-    'componentWillUnmount',
-  ]
-
-  lifecycleMethods.forEach((method) => {
-    if (typeof componentClass.prototype[method] !== 'undefined') {
-      sinon.stub(componentClass.prototype, method).returns(null)
-    }
-  })
-
-}

ui/app/components/app/account-menu/tests/account-menu.test.js

@@ -116,8 +116,9 @@ describe('Account Menu', async () => {
 
   describe('Log Out', () => {
     let logout
+
     it('logout', () => {
-      logout = wrapper.find('.account-menu__logout-button')
+      logout = wrapper.find('.account-menu__lock-button')
       assert.equal(logout.length, 1)
     })
 

ui/app/pages/unlock-page/tests/unlock-page.test.js

@@ -2,9 +2,7 @@ import React from 'react'
 import assert from 'assert'
 import sinon from 'sinon'
 import { mount } from 'enzyme'
-import { stubComponent } from '../../../../../test/lib/render-helpers'
 import UnlockPage from '../index'
-import Mascot from '../../../components/ui/mascot'
 
 describe('Unlock Page', () => {
   let wrapper
@@ -21,7 +19,6 @@ describe('Unlock Page', () => {
     showOptInModal: sinon.spy(),
   }
 
-  stubComponent(Mascot)
 
   beforeEach(() => {