examples: removed unused example

examples/ipam-test/mltnad.yaml

-apiVersion: "k8s.cni.cncf.io/v1"
-kind: NetworkAttachmentDefinition
-metadata:
-  name: my-bridge-net
-  namespace: default  # Or any namespace you want this network to be available in
-spec:
-  config: '{
-      "cniVersion": "0.3.1",
-      "name": "my-bridge-net",
-      "type": "bridge",
-      "bridge": "brtest",
-      "isGateway": true,
-      "ipMasq": false,
-      "hairpinMode": true,
-      "ipam": {
-          "type": "host-local",
-          "subnet": "10.244.1.0/24",
-          "rangeStart": "10.244.1.10",
-          "rangeEnd": "10.244.1.100",
-          "routes": [
-              { "dst": "0.0.0.0/0" }
-          ],
-          "gateway": "10.244.1.1"
-      }
-  }'

examples/ipam-test/multus-test/ping.yaml

-apiVersion: v1
-kind: Pod
-metadata:
-  name: ping
-  annotations:
-   k8s.v1.cni.cncf.io/networks: '[{"name": "veth10","ips": ["10.0.0.6/24"]}]'
-spec:
-  containers:
-  - name: router
-    command: ["/bin/ash", "-c", "trap : TERM INT; sleep infinity & wait"]
-    image: alpine:latest
-    securityContext:
-      capabilities:
-        add: ["NET_ADMIN"]
-  # Use this parameter if you want to place the pod in a specific node
-  nodeName: ant-machine

examples/ipam-test/multus-test/pong.yaml

-apiVersion: v1
-kind: Pod
-metadata:
-  name: pong
-  annotations:
-    k8s.v1.cni.cncf.io/networks: '[{"name": "veth10","ips": ["10.0.0.5/24"]}]'
-spec:
-  containers:
-  - name: router
-    command: ["/bin/ash", "-c", "trap : TERM INT; sleep infinity & wait"]
-    image: alpine:latest
-    securityContext:
-      capabilities:
-        add: ["NET_ADMIN"]
-  # Use this parameter if you want to place the pod in a specific node
-  nodeName: ant-machine