[gnome-boxes] libvirt-machine: Drop unused get_domain_network_interface

[Felipe Borges <felipeborges src gnome org>]

commit 8977c0946f22297cb9b71d9fa8309a1cd55fa059
Author: Felipe Borges <felipeborges gnome org>
Date:   Tue Dec 14 15:11:38 2021 +0100

    libvirt-machine: Drop unused get_domain_network_interface
    
    We now use GVirConfig's APIs directly to update the network
    device.

 src/libvirt-machine.vala | 16 ----------------
 1 file changed, 16 deletions(-)
---
diff --git a/src/libvirt-machine.vala b/src/libvirt-machine.vala
index f80dba6f..89579d8e 100644
--- a/src/libvirt-machine.vala
+++ b/src/libvirt-machine.vala
@@ -432,22 +432,6 @@ public void try_shutdown () {
         return disk;
     }
 
-    private GVir.DomainInterface? get_domain_network_interface () throws GLib.Error {
-        var net = null as GVir.DomainInterface;
-
-        // FiXME: We currently only entertain one network interface
-        foreach (var device_config in domain_config.get_devices ()) {
-            if (device_config is GVirConfig.DomainInterface) {
-                net = Object.new (typeof (GVir.DomainInterface),
-                                  "domain", domain,
-                                  "config", device_config) as GVir.DomainInterface;
-                break;
-            }
-        }
-
-        return net;
-    }
-
     private GVir.DomainStartFlags connect_flags_to_gvir (Machine.ConnectFlags flags) {
         GVir.DomainStartFlags gvir_flags = 0;
         if (Machine.ConnectFlags.IGNORE_SAVED_STATE in flags)