Update yaml

Signed-off-by: Shaad7 <[email protected]>

Author: AbdullahAlShaad

test/e2e/data/infrastructure-gcp/cluster-template-ci-gke-custom-subnet.yaml

@@ -38,7 +38,6 @@ metadata:
 spec:
   project: "${GCP_PROJECT}"
   location: "${GCP_REGION}"
-  releaseChannel: "regular"
 ---
 apiVersion: cluster.x-k8s.io/v1beta1
 kind: MachinePool