Fix lint errrors

packages/runner-ct/cypress/component/SpecList/SpecList.spec.tsx

@@ -1,4 +1,3 @@
-/* global cy */
 import React from 'react'
 import { mount } from '@cypress/react'
 import { SpecList } from '../../../src/SpecList'

packages/runner-ct/render-target.js

@@ -1,4 +1,3 @@
-/* globals document */
 import $ from 'cash-dom'
 
 function appendTargetIfNotExists (id, tag = 'div', parent = document.body) {

packages/runner-ct/src/iframe/iframes.jsx

@@ -21,10 +21,6 @@ export default class Iframes extends Component {
   _disposers = []
   containerRef = null
 
-  constructor (props) {
-    super(props)
-  }
-
   render () {
     const { height, width, scriptError, scale } = this.props.state