func (sys *IAMSys) DeletePolicy(ctx context.Context, policyName string, notifyPeers bool) error {
	if !sys.Initialized() {
		return errServerNotInitialized
	}

	for _, v := range policy.DefaultPolicies {
		if v.Name == policyName {
			if err := checkConfig(ctx, globalObjectAPI, getPolicyDocPath(policyName)); err != nil && err == errConfigNotFound {