fix linting errors

app/scripts/metamask-controller.js

@@ -653,7 +653,7 @@ module.exports = class MetamaskController extends EventEmitter {
 
     const { identities } = this.preferencesController.store.getState()
     return { ...keyState, identities }
-  }
+   }
 
 
   //

old-ui/app/components/transaction-list-item.js

@@ -40,7 +40,7 @@ TransactionListItem.prototype.showRetryButton = function () {
   const currentNonce = txParams.nonce
   const currentNonceTxs = transactions.filter(tx => tx.txParams.nonce === currentNonce)
   const currentNonceSubmittedTxs = currentNonceTxs.filter(tx => tx.status === 'submitted')
-  const currentSubmittedTxs = transactions.filter(tx => tx.status === 'submitted')  
+  const currentSubmittedTxs = transactions.filter(tx => tx.status === 'submitted')
   const lastSubmittedTxWithCurrentNonce = currentNonceSubmittedTxs[0]
   const currentTxIsLatestWithNonce = lastSubmittedTxWithCurrentNonce &&
     lastSubmittedTxWithCurrentNonce.id === transaction.id

ui/app/components/qr-scanner/qr-scanner.component.js

@@ -1,9 +1,10 @@
 import React, { Component } from 'react'
 import PropTypes from 'prop-types'
 import {connect} from 'react-redux'
+import adapter from 'webrtc-adapter' // eslint-disable-line import/no-nodejs-modules, no-unused-vars
+import { BrowserQRCodeReader } from '@zxing/library'
 import { hideQrScanner, qrCodeDetected} from '../../actions'
 import Spinner from '../spinner'
-import { BrowserQRCodeReader } from '@zxing/library'
 
 class QrScanner extends Component {
   static propTypes = {

ui/app/components/send/send-content/send-to-row/send-to-row.component.js

@@ -3,7 +3,6 @@ import PropTypes from 'prop-types'
 import SendRowWrapper from '../send-row-wrapper/'
 import EnsInput from '../../../ens-input'
 import { getToErrorObject } from './send-to-row.utils.js'
-import adapter from 'webrtc-adapter'
 
 export default class SendToRow extends Component {