Merge pull request #35138 from MrHohn/kubedns-comment

Automatic merge from submit-queue

Add comment for why EndpointsStore doesn't have DeleteFunc

I was confused about why EndpointsStore does not need to have the DeleteFunc. I think it would be helpful to have a comment here.

@bprashanth @bowei

pkg/dns/dns.go

@@ -225,6 +225,8 @@ func (kd *KubeDNS) setEndpointsStore() {
 				// TODO: Avoid unwanted updates.
 				kd.handleEndpointAdd(newObj)
 			},
+			// No DeleteFunc for EndpointsStore because endpoint object will be deleted
+			// when corresponding service is deleted.
 		},
 	)
 }