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 {

				return
			}
			for policyName, policy := range allPolicies {
				if policy.IsEmpty() {
					err = globalIAMSys.DeletePolicy(ctx, policyName, true)
					removed.Policies = append(removed.Policies, policyName)
				} else {
					_, err = globalIAMSys.SetPolicy(ctx, policyName, policy)
					added.Policies = append(added.Policies, policyName)
				}
				if err != nil {

	if accessKey == "" || !cred.IsTemp() || cred.IsExpired() || cred.ParentUser == "" {
		return time.Time{}, errInvalidArgument
	}

	ttl := int64(cred.Expiration.Sub(UTCNow()).Seconds())

	cache := store.lock()
	defer store.unlock()

	if policyName != "" {
		mp := newMappedPolicy(policyName)

	objAPI := newObjectLayerFn()
	if objAPI == nil {
		return np, grid.NewRemoteErr(errServerNotInitialized)
	}

	policyName := mss.Get(peerRESTPolicy)
	if policyName == "" {
		return np, grid.NewRemoteErr(errors.New("policyName is missing"))
	}

	if err := globalIAMSys.DeletePolicy(context.Background(), policyName, false); err != nil {
		return np, grid.NewRemoteErr(err)
	}

	return
}

	if err != nil {
		c.Fatalf("list users should not fail: %v", err)
	}
	if len(usersList) != 1 {
		c.Fatalf("expected user listing output: %v", usersList)
	}
	uinfo := usersList[userDN]
	if uinfo.PolicyName != policy || uinfo.Status != madmin.AccountEnabled {
		c.Fatalf("expected user listing content: %v", uinfo)
	}

	// Validate that the client from sts creds can access the bucket.