chore: Remove kubectl provider from Karpenter example (#3251)

* Change kubectl provider

* chore: Remove `kubectl` provider

---------

Co-authored-by: Bryant Biggs <bryantbiggs@gmail.com>

examples/karpenter/karpenter.yaml

@@ -0,0 +1,47 @@
+---
+apiVersion: karpenter.k8s.aws/v1
+kind: EC2NodeClass
+metadata:
+  name: default
+spec:
+  amiSelectorTerms:
+    - alias: bottlerocket@latest
+  role: ex-karpenter
+  subnetSelectorTerms:
+    - tags:
+        karpenter.sh/discovery: ex-karpenter
+  securityGroupSelectorTerms:
+    - tags:
+        karpenter.sh/discovery: ex-karpenter
+  tags:
+    karpenter.sh/discovery: ex-karpenter
+---
+apiVersion: karpenter.sh/v1
+kind: NodePool
+metadata:
+  name: default
+spec:
+  template:
+    spec:
+      nodeClassRef:
+        group: karpenter.k8s.aws
+        kind: EC2NodeClass
+        name: default
+      requirements:
+        - key: "karpenter.k8s.aws/instance-category"
+          operator: In
+          values: ["c", "m", "r"]
+        - key: "karpenter.k8s.aws/instance-cpu"
+          operator: In
+          values: ["4", "8", "16", "32"]
+        - key: "karpenter.k8s.aws/instance-hypervisor"
+          operator: In
+          values: ["nitro"]
+        - key: "karpenter.k8s.aws/instance-generation"
+          operator: Gt
+          values: ["2"]
+  limits:
+    cpu: 1000
+  disruption:
+    consolidationPolicy: WhenEmpty
+    consolidateAfter: 30s