global: use Go 1.18's netip helpers

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

device/allowedips.go

@@ -10,10 +10,9 @@ import (
 	"errors"
 	"math/bits"
 	"net"
+	"net/netip"
 	"sync"
 	"unsafe"
-
-	"golang.zx2c4.com/go118/netip"
 )
 
 type parentIndirection struct {

device/allowedips_rand_test.go

@@ -8,10 +8,9 @@ package device
 import (
 	"math/rand"
 	"net"
+	"net/netip"
 	"sort"
 	"testing"
-
-	"golang.zx2c4.com/go118/netip"
 )
 
 const (

device/allowedips_test.go

@@ -8,9 +8,8 @@ package device
 import (
 	"math/rand"
 	"net"
+	"net/netip"
 	"testing"
-
-	"golang.zx2c4.com/go118/netip"
 )
 
 type testPairCommonBits struct {

device/device_test.go

@@ -11,6 +11,7 @@ import (
 	"fmt"
 	"io"
 	"math/rand"
+	"net/netip"
 	"runtime"
 	"runtime/pprof"
 	"sync"
@@ -18,7 +19,6 @@ import (
 	"testing"
 	"time"
 
-	"golang.zx2c4.com/go118/netip"
 	"golang.zx2c4.com/wireguard/conn"
 	"golang.zx2c4.com/wireguard/conn/bindtest"
 	"golang.zx2c4.com/wireguard/tun/tuntest"

device/endpoint_test.go

@@ -7,8 +7,7 @@ package device
 
 import (
 	"math/rand"
-
-	"golang.zx2c4.com/go118/netip"
+	"net/netip"
 )
 
 type DummyEndpoint struct {

device/receive.go

@@ -17,6 +17,7 @@ import (
 	"golang.org/x/crypto/chacha20poly1305"
 	"golang.org/x/net/ipv4"
 	"golang.org/x/net/ipv6"
+
 	"golang.zx2c4.com/wireguard/conn"
 )
 

device/send.go

@@ -10,6 +10,7 @@ import (
 	"encoding/binary"
 	"errors"
 	"net"
+	"net/netip"
 	"os"
 	"sync"
 	"sync/atomic"

device/uapi.go

@@ -12,13 +12,13 @@ import (
 	"fmt"
 	"io"
 	"net"
+	"net/netip"
 	"strconv"
 	"strings"
 	"sync"
 	"sync/atomic"
 	"time"
 
-	"golang.zx2c4.com/go118/netip"
 	"golang.zx2c4.com/wireguard/ipc"
 )