[basic-example][m] - remove middleware

examples/basic-example/lib/loadData.tsx

@@ -0,0 +1,5 @@
+export default async function loadData(url: string) {
+  const response = await fetch(url)
+  const data = await response.text()
+  return data
+}

examples/basic-example/lib/loadUrlProxied.tsx

@@ -1,11 +0,0 @@
-export default async function loadUrlProxied(url: string) {
-  // HACK: duplicate of Excel code - maybe refactor
-  // if url is external may have CORS issue so we proxy it ...
-  if (url.startsWith("http")) {
-    const PROXY_URL = "/api/proxy";
-    url = PROXY_URL + "?url=" + encodeURIComponent(url);
-  }
-  const response = await fetch(url)
-  const data = await response.text()
-  return data
-}