remove algolia (#184)

**Description**
remove algolia apikey to mitigate serv2 ticket. The contextual search
does not work now since because we don't config crawler for it. We can
temporarily remove it to mitigate urgent serv2 ticket

website/docusaurus.config.js

@@ -94,11 +94,6 @@ module.exports = {
         '📢 <a href="https://azure.github.io/MS-AMP/blog/release-msamp-v0.4">v0.4.0</a> has been released! ' +
         '⭐️ If you like MS-AMP, give it a star on <a target="_blank" rel="noopener noreferrer" href="https://github.com/Azure/MS-AMP">GitHub</a>! ⭐️',
     },
-    algolia: {
-      apiKey: '6809111d3dabf59fe562601d591d7c53',
-      indexName: 'msamp',
-      contextualSearch: true,
-    },
     prism: {
       theme: lightCodeTheme,
       darkTheme: darkCodeTheme,