Remove selectedIdentity prop from wallet view

The selectedIdentity property is computed based on the selectedAddress
which means that using both the selectedAddress and the selectedIdentity
is redundant. In the case of the Array#find call on the set of keyrings,
we wouldn't have a situation where one is included and the other isn't.

This changeset removes the selectedIdentity from the wallet view because
it isn't needed.

ui/app/components/wallet-view.js

@@ -36,7 +36,6 @@ function mapStateToProps (state) {
     tokens: state.metamask.tokens,
     keyrings: state.metamask.keyrings,
     selectedAddress: selectors.getSelectedAddress(state),
-    selectedIdentity: selectors.getSelectedIdentity(state),
     selectedAccount: selectors.getSelectedAccount(state),
     selectedTokenAddress: state.metamask.selectedTokenAddress,
   }
@@ -99,12 +98,12 @@ WalletView.prototype.render = function () {
   const {
     responsiveDisplayClassname,
     selectedAddress,
-    selectedIdentity,
     keyrings,
     showAccountDetailModal,
     sidebarOpen,
     hideSidebar,
     history,
+    identities,
   } = this.props
   // temporary logs + fake extra wallets
   // console.log('walletview, selectedAccount:', selectedAccount)
@@ -116,8 +115,7 @@ WalletView.prototype.render = function () {
   }
 
   const keyring = keyrings.find((kr) => {
-    return kr.accounts.includes(selectedAddress) ||
-      kr.accounts.includes(selectedIdentity.address)
+    return kr.accounts.includes(selectedAddress)
   })
 
   const type = keyring.type
@@ -149,7 +147,7 @@ WalletView.prototype.render = function () {
         h('span.account-name', {
           style: {},
         }, [
-          selectedIdentity.name,
+          identities[selectedAddress].name,
         ]),
 
         h('button.btn-clear.wallet-view__details-button.allcaps', this.context.t('details')),