cluster: Disable Flannel (#2429)

https://prow.ci.kubevirt.io/view/gs/kubevirt-prow/pr-logs/pull/kubevirt_cluster-network-addons-operator/2428/pull-e2e-cluster-network-addons-operator-lifecycle-k8s/1978786400497045504

Signed-off-by: Or Shoval <[email protected]>

Author: oshoval

cluster/cluster.sh

@@ -14,7 +14,6 @@
 
 export KUBEVIRT_PROVIDER=${KUBEVIRT_PROVIDER:-'k8s-1.33'}
 export KUBEVIRTCI_TAG=${KUBEVIRTCI_TAG:-2509250927-f5abd488}
-export KUBEVIRT_FLANNEL=true
 
 KUBEVIRTCI_REPO='https://github.com/kubevirt/kubevirtci.git'
 # The CLUSTER_PATH var is used in cluster folder and points to the _kubevirtci where the cluster is deployed from.