k8s example: Remove obsolete comment

Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>

documentation/examples/prometheus-kubernetes.yml

@@ -57,11 +57,6 @@ scrape_configs:
         regex: default;kubernetes;https
 
   # Scrape config for nodes (kubelet).
-  #
-  # Rather than connecting directly to the node, the scrape is proxied though the
-  # Kubernetes apiserver.  This means it will work if Prometheus is running out of
-  # cluster, or can't connect to nodes for some other reason (e.g. because of
-  # firewalling).
   - job_name: "kubernetes-nodes"
 
     # Default to scraping over https. If required, just disable this or change to