docs: Delete empty optimizing folder (vercel#78966)

Cleaning up 🧹

Author: delbaoliveira

docs/01-app/03-building-your-application/06-optimizing/index.mdx

@@ -11,12 +11,12 @@ The sections and pages are organized sequentially, from basic to advanced, so yo
 
 <AppOnly>
 
-If you're new to Next.js, we recommend starting with the [Routing](/docs/app/building-your-application/routing), [Rendering](/docs/app/building-your-application/rendering), [Data Fetching](/docs/app/building-your-application/data-fetching) and [Styling](/docs/app/building-your-application/styling) sections, as they introduce the fundamental Next.js and web concepts to help you get started. Then, you can dive deeper into the other sections such as [Optimizing](/docs/app/building-your-application/optimizing). Finally, once you're ready, checkout the [Deploying](/docs/app/getting-started/deploying) and [Upgrading](/docs/app/guides/upgrading) sections.
+If you're new to Next.js, we recommend starting with the [Routing](/docs/app/building-your-application/routing), [Rendering](/docs/app/building-your-application/rendering), [Data Fetching](/docs/app/building-your-application/data-fetching) and [Styling](/docs/app/building-your-application/styling) sections, as they introduce the fundamental Next.js and web concepts to help you get started. Finally, once you're ready, checkout the [Deploying](/docs/app/getting-started/deploying) and [Upgrading](/docs/app/guides/upgrading) sections.
 
 </AppOnly>
 
 <PagesOnly>
 
-If you're new to Next.js, we recommend starting with the [Routing](/docs/pages/building-your-application/routing), [Rendering](/docs/pages/building-your-application/rendering), [Data Fetching](/docs/pages/building-your-application/data-fetching) and [Styling](/docs/pages/building-your-application/styling) sections, as they introduce the fundamental Next.js and web concepts to help you get started. Then, you can dive deeper into the other sections such as [Optimizing](/docs/pages/building-your-application/optimizing) and [Configuring](/docs/pages/building-your-application/configuring). Finally, once you're ready, checkout the [Deploying](/docs/pages/getting-started/deploying) and [Upgrading](/docs/pages/guides/upgrading) sections.
+If you're new to Next.js, we recommend starting with the [Routing](/docs/pages/building-your-application/routing), [Rendering](/docs/pages/building-your-application/rendering), [Data Fetching](/docs/pages/building-your-application/data-fetching) and [Styling](/docs/pages/building-your-application/styling) sections, as they introduce the fundamental Next.js and web concepts to help you get started. Then, you can dive deeper into the other sections such as [Configuring](/docs/pages/building-your-application/configuring). Finally, once you're ready, checkout the [Deploying](/docs/pages/getting-started/deploying) and [Upgrading](/docs/pages/guides/upgrading) sections.
 
 </PagesOnly>

docs/01-app/03-building-your-application/index.mdx

@@ -328,7 +328,7 @@ For information that is important but not critical, use notes. Notes are a good
 Related Links guide the user's learning journey by adding links to logical next steps.
 
 - Links will be displayed in cards under the main content of the page.
-- Links will be automatically generated for pages that have child pages. For example, the [Optimizing](/docs/app/building-your-application/optimizing) section has links to all of its child pages.
+- Links will be automatically generated for pages that have child pages.
 
 Create related links using the `related` field in the page's metadata.