refactor unused code

app/scripts/controllers/preferences.js

@@ -452,10 +452,12 @@ class PreferencesController {
     if (!rawAddress || !symbol || !decimals) throw new Error(`Cannot suggest token without address, symbol, and decimals`)
     if (!(symbol.length < 5)) throw new Error(`Invalid symbol ${symbol} more than four characters`)
     const numDecimals = parseInt(decimals, 10)
-    if (isNaN(numDecimals) || numDecimals > 18 || numDecimals < 0) throw new Error(`Invalid decimals ${decimals}`)
+    if (isNaN(numDecimals) || numDecimals > 36 || numDecimals < 0) {
+      throw new Error(`Invalid decimals ${decimals} must be at least 0, and not over 36`)
+    }
     if (!isValidAddress(rawAddress)) throw new Error(`Invalid address ${rawAddress}`)
   }
-    
+
   /**
    * Subscription to network provider type.
    *

old-ui/app/app.js

@@ -239,7 +239,7 @@ App.prototype.renderPrimary = function () {
       return h(AddTokenScreen, {key: 'add-token'})
 
     case 'add-suggested-token':
-      log.debug('rendering add-token screen from unlock screen.')
+      log.debug('rendering add-suggested-token screen from unlock screen.')
       return h(AddSuggestedTokenScreen, {key: 'add-suggested-token'})
 
     case 'config':

ui/app/actions.js

@@ -1639,12 +1639,6 @@ function removeSuggestedTokens () {
   }
 }
 
-function clearPendingTokens () {
-  return {
-    type: actions.CLEAR_PENDING_TOKENS,
-  }
-}
-
 function updateTokens (newTokens) {
   return {
     type: actions.UPDATE_TOKENS,
@@ -1652,6 +1646,12 @@ function updateTokens (newTokens) {
   }
 }
 
+function clearPendingTokens () {
+  return {
+    type: actions.CLEAR_PENDING_TOKENS,
+  }
+}
+
 function goBackToInitView () {
   return {
     type: actions.BACK_TO_INIT_MENU,

ui/app/components/pages/confirm-add-token/confirm-add-token.component.js

@@ -90,9 +90,7 @@ export default class ConfirmAddToken extends Component {
             type="default"
             large
             className="page-container__footer-button"
-            onClick={() => {
-              history.push(ADD_TOKEN_ROUTE)
-            }}
+            onClick={() => history.push(ADD_TOKEN_ROUTE)}
           >
             { this.context.t('back') }
           </Button>

ui/app/components/pages/confirm-add-token/confirm-add-token.container.js

@@ -1,16 +1,12 @@
 import { connect } from 'react-redux'
 import ConfirmAddToken from './confirm-add-token.component'
 
-const extend = require('xtend')
-
 const { addTokens, clearPendingTokens } = require('../../../actions')
 
 const mapStateToProps = ({ metamask }) => {
-  const { pendingTokens, suggestedTokens } = metamask
-  const params = extend(pendingTokens, suggestedTokens)
-
+  const { pendingTokens } = metamask
   return {
-    pendingTokens: params,
+    pendingTokens,
   }
 }
 

ui/app/reducers/metamask.js

@@ -29,7 +29,6 @@ function reduceMetamask (state, action) {
     tokenExchangeRates: {},
     tokens: [],
     pendingTokens: {},
-    suggestedTokens: {},
     send: {
       gasLimit: null,
       gasPrice: null,