cleanup: use unexported variable (#22908)
cleanup: use unexported variable (#22908)

Signed-off-by: huanggze <5a2cbaf6bd82f7313ae43d92fc27280522a4af08@yunify.com>
grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana,grafana/grafana