Removing required sentence in #21133

content/en/docs/concepts/services-networking/connect-applications-service.md

@@ -19,7 +19,7 @@ By default, Docker uses host-private networking, so containers can talk to other
 
 Coordinating port allocations across multiple developers or teams that provide containers is very difficult to do at scale, and exposes users to cluster-level issues outside of their control. Kubernetes assumes that pods can communicate with other pods, regardless of which host they land on. Kubernetes gives every pod its own cluster-private IP address, so you do not need to explicitly create links between pods or map container ports to host ports. This means that containers within a Pod can all reach each other's ports on localhost, and all pods in a cluster can see each other without NAT. The rest of this document elaborates on how you can run reliable services on such a networking model.
 
-This guide uses a simple nginx server to demonstrate proof of concept. The same principles are embodied in a more complete [Jenkins CI application](https://kubernetes.io/blog/2015/07/strong-simple-ssl-for-kubernetes).
+This guide uses a simple nginx server to demonstrate proof of concept.
 
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