duplicated _updateCacheAfterVote method

Author: BODAZ

src/components/LinkList.js

@@ -41,14 +41,7 @@ class LinkList extends Component {
     )
 
   }
-
-  _updateCacheAfterVote = (store, createVote, linkId) => {
-    const data = store.readQuery({ query: ALL_LINKS_QUERY })
-    const votedLink = data.allLinks.find(link => link.id === linkId)
-    votedLink.votes = createVote.link.votes
-    store.writeQuery({ query: ALL_LINKS_QUERY, data })
-  }
-
+  
   _getLinksToRender = (isNewPage) => {
     if (isNewPage) {
       return this.props.allLinksQuery.allLinks