Index pattern management to Kibana platform

src/legacy/core_plugins/kibana/public/discover/np_ready/components/fetch_error/fetch_error.tsx

@@ -41,7 +41,7 @@ const DiscoverFetchError = ({ fetchError }: Props) => {
     const { chrome } = getServices();
     const mangagementUrlObj = chrome.navLinks.get('kibana:stack_management');
     const managementUrl = mangagementUrlObj ? mangagementUrlObj.url : '';
-    const url = `${managementUrl}/kibana/index_patterns`;
+    const url = `${managementUrl}/kibana/indexPatterns`;
 
     body = (
       <p>

src/legacy/core_plugins/kibana/public/management/index.js

@@ -21,7 +21,6 @@ import React from 'react';
 import { render, unmountComponentAtNode } from 'react-dom';
 import { FormattedMessage } from '@kbn/i18n/react';
 
-import './sections';
 import uiRoutes from 'ui/routes';
 import { I18nContext } from 'ui/i18n';
 import { uiModules } from 'ui/modules';