Revert "Configure dns servers for SL"

This reverts commit a23189e.

Co-authored-by: Belinda Liu <[email protected]>

platform/net/ubuntu_net_manager.go

@@ -98,10 +98,8 @@ func (net UbuntuNetManager) SetupIPv6(config boshsettings.IPv6, stopCh <-chan st
 
 func (net UbuntuNetManager) SetupNetworking(networks boshsettings.Networks, errCh chan error) error {
 	if networks.IsPreconfigured() {
-		err := net.writeResolvConf(networks)
-		if err != nil {
-			return bosherr.WrapError(err, "Writing resolvconf")
-		}
+		// Note in this case IPs are not broadcast
+		return net.writeResolvConf(networks)
 	}
 
 	staticConfigs, dhcpConfigs, dnsServers, err := net.ComputeNetworkConfig(networks)

platform/net/ubuntu_net_manager_test.go

@@ -242,16 +242,6 @@ dns-nameservers 8.8.8.8 9.9.9.9`
 		Context("networks is preconfigured", func() {
 			var networks boshsettings.Networks
 			BeforeEach(func() {
-				interfacePaths := []string{}
-				interfacePaths = append(interfacePaths, writeNetworkDevice("fake-eth0", "fake-static-mac-address", true))
-				interfacePaths = append(interfacePaths, writeNetworkDevice("fake-eth1", "fake-dhcp-mac-address", true))
-				fs.SetGlob("/sys/class/net/*", interfacePaths)
-
-				interfaceAddrsProvider.GetInterfaceAddresses = []boship.InterfaceAddress{
-					boship.NewSimpleInterfaceAddress("fake-eth0", "1.2.3.4"),
-					boship.NewSimpleInterfaceAddress("fake-eth1", "5.6.7.8"),
-				}
-
 				dhcpNetwork.Preconfigured = true
 				staticNetwork.Preconfigured = true
 				networks = boshsettings.Networks{
@@ -397,7 +387,7 @@ nameserver 9.9.9.9
 				err := netManager.SetupNetworking(networks, nil)
 				Expect(err).ToNot(HaveOccurred())
 
-				Expect(len(cmdRunner.RunCommands)).To(Equal(6))
+				Expect(len(cmdRunner.RunCommands)).To(Equal(1))
 				Expect(cmdRunner.RunCommands[0]).To(Equal([]string{"resolvconf", "-u"}))
 			})
 		})

settings/service.go

@@ -207,10 +207,6 @@ func (s *settingsService) GetSettings() Settings {
 	}
 	s.settingsMutex.Unlock()
 
-	if settingsCopy.Networks.HasInterfaceAlias() {
-		return settingsCopy
-	}
-
 	for networkName, network := range settingsCopy.Networks {
 		if !network.IsDHCP() {
 			continue