internal/ethapi, les: use slices package for sorting (#27492)

Co-authored-by: Felix Lange <fjl@twurst.com>

internal/ethapi/api_test.go

@@ -17,7 +17,6 @@
 package ethapi
 
 import (
-	"bytes"
 	"context"
 	"crypto/ecdsa"
 	"encoding/json"
@@ -25,7 +24,6 @@ import (
 	"hash"
 	"math/big"
 	"reflect"
-	"sort"
 	"testing"
 	"time"
 
@@ -48,6 +46,7 @@ import (
 	"github.com/ethereum/go-ethereum/rpc"
 	"github.com/stretchr/testify/require"
 	"golang.org/x/crypto/sha3"
+	"golang.org/x/exp/slices"
 )
 
 func TestTransaction_RoundTripRpcJSON(t *testing.T) {
@@ -649,19 +648,13 @@ type Account struct {
 	addr common.Address
 }
 
-type Accounts []Account
-
-func (a Accounts) Len() int           { return len(a) }
-func (a Accounts) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
-func (a Accounts) Less(i, j int) bool { return bytes.Compare(a[i].addr.Bytes(), a[j].addr.Bytes()) < 0 }
-
-func newAccounts(n int) (accounts Accounts) {
+func newAccounts(n int) (accounts []Account) {
 	for i := 0; i < n; i++ {
 		key, _ := crypto.GenerateKey()
 		addr := crypto.PubkeyToAddress(key.PublicKey)
 		accounts = append(accounts, Account{key: key, addr: addr})
 	}
-	sort.Sort(accounts)
+	slices.SortFunc(accounts, func(a, b Account) bool { return a.addr.Less(b.addr) })
 	return accounts
 }