Remove DirectoryListing from overview page

Author: RebeccaTamachiro

src/content/docs/ssl/client-certificates/index.mdx

@@ -53,10 +53,4 @@ flowchart LR
         accTitle: mTLS from client to worker versus mTLS from worker to external service
         accDescr: Diagram showing two different implementations that can be considered for mTLS with Cloudflare Workers.
         A[Client] <--App security mTLS--> B((Cloudflare))<--mTLS worker binding--> C[(External service)]
-```
-
----
-
-## Resources
-
-<DirectoryListing />
+```