Merge pull request #60147 from aledbf/remove-cassandra

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Remove cassandra example.

**What this PR does / why we need it**:

Removes duplicated content from this repository and `kubernetes/examples`

https://github.com/kubernetes/examples/tree/master/cassandra

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

hack/make-rules/test-cmd-util.sh

@@ -4281,8 +4281,8 @@ run_resource_aliasing_tests() {
 
   create_and_use_new_namespace
   kube::log::status "Testing resource aliasing"
-  kubectl create -f examples/storage/cassandra/cassandra-controller.yaml "${kube_flags[@]}"
-  kubectl create -f examples/storage/cassandra/cassandra-service.yaml "${kube_flags[@]}"
+  kubectl create -f test/e2e/testing-manifests/statefulset/cassandra/controller.yaml "${kube_flags[@]}"
+  kubectl create -f test/e2e/testing-manifests/statefulset/cassandra/service.yaml "${kube_flags[@]}"
 
   object="all -l'app=cassandra'"
   request="{{range.items}}{{range .metadata.labels}}{{.}}:{{end}}{{end}}"