docs: remove OSS image/pricing updates banner (#546)

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: quetzalliwrites

src/components/BannerWithPersistentAnnouncement.astro

@@ -1,13 +1,5 @@
 ---
 import Default from '@astrojs/starlight/components/Banner.astro';
-
-const route = Astro.locals.starlightRoute;
-if (route.id.startsWith('aws')) {
-  route.entry.data.banner = {
-    content:
-      'To improve reliability, we’ve moved to a single, authenticated LocalStack for AWS image that requires an <a href="https://app.localstack.cloud/workspace/auth-tokens">auth token</a>. For more details on plans and pricing, see our <a href="https://www.localstack.cloud/pricing">pricing page</a>.',
-  };
-}
 ---
 
 <Default />