Fix inject.js & Signer store duplication (#7299)

* Remove extension mappings

* Remove duplicated pending stores

js/src/Signer/pendingStore.js

@@ -42,11 +42,18 @@ export default class PendingStore {
   }
 
   subscribePending = () => {
-    this._api.subscribe('signer_requestsToConfirm', (error, pending) => {
-      if (!error) {
-        this.setPending(pending);
+    const callback = (error, pending) => {
+      if (error) {
+        return;
       }
-    });
+
+      this.setPending(pending);
+    };
+
+    this._api
+      .subscribe('signer_requestsToConfirm', callback)
+      .then(() => this._api.signer.requestsToConfirm())
+      .then((pending) => callback(null, pending));
   }
 
   static get (api) {

js/src/Status/SignerPending/signerPending.js

@@ -26,7 +26,7 @@ import Label from 'semantic-ui-react/dist/commonjs/elements/Label';
 import List from 'semantic-ui-react/dist/commonjs/elements/List';
 import Popup from 'semantic-ui-react/dist/commonjs/modules/Popup';
 
-import Store from './store';
+import Store from '../../Signer/pendingStore';
 import ParityBarStore from '../../ParityBar/store';
 import RequestItem from './RequestItem';
 import styles from './signerPending.css';

js/src/inject.js

@@ -18,8 +18,6 @@ import Api from '@parity/api';
 import qs from 'query-string';
 import Web3 from 'web3';
 
-import web3extensions from './web3.extensions';
-
 function initProvider () {
   const path = window.location.pathname.split('/');
   const query = qs.parse(window.location.search);
@@ -67,8 +65,6 @@ function initWeb3 (ethereum) {
     web3.eth.defaultAccount = accounts[0];
   });
 
-  web3extensions(web3).map((extension) => web3._extend(extension));
-
   window.web3 = web3;
 }