OAM firewallrules are now managed by Calico GlobalNetworkPolicy configuration
via k8s API (not by sysinv anymore). This update removed firewallrules
audit from dcorch.
Change-Id: I9fab73c016bb4af760c7d78f0db18dcc8bb77057
Closes-Bug: 1844147
Signed-off-by: Andy Ning <andy.ning@windriver.com>