Steps to reproduce:
      {
        "metric":

{           "__name__": "nodehealthcheck_ongoing_remediation",           "container": "kube-rbac-proxy",           "endpoint": "https",           "exported_instance": "x.x.x.x:yy",           "exported_job": "node-healthcheck-controller-manager-metrics-service",           "exported_namespace": "openshift-workload-availability",           "instance": "my-redacted-instance:my-port",           "job": "prometheus-federate-job",           "name": "<node-name>",    // This is the node name           "namespace": "openshift-workload-availability",           "pod": "node-healthcheck-controller-manager-7f6475d7d4-zvrxw",           "prometheus": "openshift-monitoring/k8s",           "prometheus_replica": "prometheus-k8s-0",           "remediation": "SelfNodeRemediation",           "service": "node-healthcheck-controller-manager-metrics-service"         }

,
        "value": [
          1771598863.253,
          "1"   // Value is "1" for Node name
        ]
      },
      {
        "metric":

{           "__name__": "nodehealthcheck_ongoing_remediation",           "container": "kube-rbac-proxy",           "endpoint": "https",           "exported_instance": "x.x.x.x:yy",           "exported_job": "node-healthcheck-controller-manager-metrics-service",           "exported_namespace": "openshift-workload-availability",           "instance": "my-redacted-instance:my-port",           "job": "prometheus-federate",           "name": "<node-name>-mh7vw",   // This is the remediation CR           "namespace": "openshift-workload-availability",           "pod": "node-healthcheck-controller-manager-7f6475d7d4-zvrxw",           "prometheus": "openshift-monitoring/k8s",           "prometheus_replica": "prometheus-k8s-0",           "remediation": "SelfNodeRemediation",           "service": "node-healthcheck-controller-manager-metrics-service"         }

,
        "value": [
          1771598863.253,
          "0"  // Value is "0" for remediation CR
        ]
      }

Looks like the issue was introduced in this PR: #231 , when
metrics.ObserveNodeHealthCheckRemediationDeleted(node.GetName(), remediationCR.GetNamespace(), remediationCR.GetKind())

was moved to deleteRemediationCR method:
metrics.ObserveNodeHealthCheckRemediationDeleted(remediationCR.GetName(), remediationCR.GetNamespace(), remediationCR.GetKind())