all: fix golangci-lint issues (#3064)

hscontrol/state/maprequest_test.go

@@ -1,15 +1,12 @@
 package state
 
 import (
-	"net/netip"
 	"testing"
 
 	"github.com/juanfont/headscale/hscontrol/types"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"tailscale.com/tailcfg"
-	"tailscale.com/types/key"
-	"tailscale.com/types/ptr"
 )
 
 func TestNetInfoFromMapRequest(t *testing.T) {
@@ -136,26 +133,3 @@ func TestNetInfoPreservationInRegistrationFlow(t *testing.T) {
 		assert.Equal(t, 7, result.PreferredDERP, "Should preserve DERP region from existing node")
 	})
 }
-
-// Simple helper function for tests
-func createTestNodeSimple(id types.NodeID) *types.Node {
-	user := types.User{
-		Name: "test-user",
-	}
-
-	machineKey := key.NewMachine()
-	nodeKey := key.NewNode()
-
-	node := &types.Node{
-		ID:         id,
-		Hostname:   "test-node",
-		UserID:     ptr.To(uint(id)),
-		User:       &user,
-		MachineKey: machineKey.Public(),
-		NodeKey:    nodeKey.Public(),
-		IPv4:       &netip.Addr{},
-		IPv6:       &netip.Addr{},
-	}
-
-	return node
-}