hs-test: clean-up ip address generation

Type: test
Signed-off-by: Maros Ondrejicka <mondreji@cisco.com>
Change-Id: I74c505920d1363d0ff2b3213fd831c181b70a173
diff --git a/extras/hs-test/vppinstance.go b/extras/hs-test/vppinstance.go
index dfaf405..4bb7261 100644
--- a/extras/hs-test/vppinstance.go
+++ b/extras/hs-test/vppinstance.go
@@ -60,10 +60,10 @@
 )
 
 type VppInstance struct {
-	container      *Container
-	additionalConfig  Stanza
-	connection     *core.Connection
-	apiChannel     api.Channel
+	container        *Container
+	additionalConfig Stanza
+	connection       *core.Connection
+	apiChannel       api.Channel
 }
 
 func (vpp *VppInstance) Suite() *HstSuite {
@@ -96,11 +96,11 @@
 
 	// Create startup.conf inside the container
 	configContent := fmt.Sprintf(
-                vppConfigTemplate,
-                containerWorkDir,
-                defaultCliSocketFilePath,
-                defaultApiSocketFilePath,
-        )
+		vppConfigTemplate,
+		containerWorkDir,
+		defaultCliSocketFilePath,
+		defaultApiSocketFilePath,
+	)
 	configContent += vpp.additionalConfig.ToString()
 	startupFileName := vpp.getEtcDir() + "/startup.conf"
 	vpp.container.createFile(startupFileName, configContent)
@@ -166,7 +166,7 @@
 func (vpp *VppInstance) createAfPacket(
 	netInterface NetInterface,
 ) (interface_types.InterfaceIndex, error) {
-        veth := netInterface.(*NetworkInterfaceVeth)
+	veth := netInterface.(*NetworkInterfaceVeth)
 
 	createReq := &af_packet.AfPacketCreateV2{
 		UseRandomHwAddr: true,
@@ -198,14 +198,7 @@
 	if veth.AddressWithPrefix() == (AddressWithPrefix{}) {
 		var err error
 		var ip4Address string
-		if veth.peerNetworkNamespace != "" {
-			ip4Address, err = veth.addresser.
-				NewIp4AddressWithNamespace(veth.peerNetworkNamespace)
-		} else {
-			ip4Address, err = veth.addresser.
-				NewIp4Address()
-		}
-		if err == nil {
+		if ip4Address, err = veth.addresser.NewIp4Address(veth.peerNetworkNumber); err == nil {
 			veth.SetAddress(ip4Address)
 		} else {
 			return 0, err