fix: remove duplicate CEL rule for secrets

we have 2 CEL rules for secrets, the rules
is same but with two different messages,
removing the duplicate one added recently

fixes: #879

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

Author: Madhu-1

api/csiaddons/v1alpha1/networkfence_types.go

@@ -92,7 +92,6 @@ type NetworkFenceSpec struct {
 	// Secret is a kubernetes secret, which is required to perform the fence/unfence operation.
 	// +kubebuilder:deprecatedversion:warning="specifying secrets in networkfence is deprecated, please use networkFenceClassName instead"
 	// +kubebuilder:validation:Optional
-	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="secrets are immutable"
 	Secret SecretSpec `json:"secret,omitempty"`
 
 	// Parameters is used to pass additional parameters to the CSI driver.

config/crd/bases/csiaddons.openshift.io_networkfences.yaml

@@ -112,8 +112,6 @@ spec:
                       rule: self == oldSelf
                 type: object
                 x-kubernetes-validations:
-                - message: secrets are immutable
-                  rule: self == oldSelf
                 - message: secret is immutable
                   rule: self == oldSelf
             required:

deploy/controller/crds.yaml

@@ -771,8 +771,6 @@ spec:
                       rule: self == oldSelf
                 type: object
                 x-kubernetes-validations:
-                - message: secrets are immutable
-                  rule: self == oldSelf
                 - message: secret is immutable
                   rule: self == oldSelf
             required: