Remove straggler code title (#2908)

Author: josh-collinsworth

sandbox/expose_http.md

@@ -11,7 +11,7 @@ Pass a port when creating the sandbox:
 <deno-tabs group-id="sandbox-sdk">
 <deno-tab value="js" label="JavaScript" default>
 
-```tsx title="main.ts"
+```tsx
 import { Sandbox } from "@deno/sandbox";
 
 await using sandbox = await Sandbox.create({ port: 8000 });