fix: Removed unwanted files and removed react-data-helmet attributes

Author: technikhil314

packages/backend/demo.js

@@ -9,9 +9,9 @@ function MyApp({ Component, pageProps }) {
         <meta charset="utf-8" />
         <meta http-equiv="x-ua-compatible" content="ie=edge" />
         <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
-        <meta data-react-helmet="true" property="og:type" content={Component.title} />
-        <meta data-react-helmet="true" name="description" content={Component.title} />
-        <meta data-react-helmet="true" property="og:title" content={Component.title} />
+        <meta property="og:type" content={Component.title} />
+        <meta name="description" content={Component.title} />
+        <meta property="og:title" content={Component.title} />
       </Head>
       <Component {...pageProps} />
     </>