fix lint error

internal/netif/network.go

@@ -1,19 +0,0 @@
-package netif
-
-import (
-	"fmt"
-
-	"github.com/vishvananda/netlink"
-)
-
-func ensureInterfaceIsUp(iface *netlink.Link) error {
-	if (*iface).Attrs().OperState == netlink.OperUp {
-		return nil
-	}
-
-	if err := netlink.LinkSetUp(*iface); err != nil {
-		return fmt.Errorf("failed to set interface up: %w", err)
-	}
-
-	return nil
-}

network.go

@@ -2,6 +2,7 @@ package kvm
 
 import (
 	"context"
+	"fmt"
 
 	"github.com/jetkvm/kvm/internal/mdns"
 	"github.com/jetkvm/kvm/internal/network/types"
@@ -77,7 +78,9 @@ func initNetwork() error {
 
 	networkManager = nmlite.NewNetworkManager(context.Background(), networkLogger)
 	networkManager.SetOnInterfaceStateChange(networkStateChanged)
-	networkManager.AddInterface(NetIfName, config.NetworkConfig)
+	if err := networkManager.AddInterface(NetIfName, config.NetworkConfig); err != nil {
+		return fmt.Errorf("failed to add interface: %w", err)
+	}
 
 	return nil
 }