[#17] frostfs: Remove method alphabetAddress

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

frostfs/frostfs_contract.go

@@ -9,7 +9,6 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/ledger"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/roles"
-	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 )
@@ -26,7 +25,6 @@ const (
 	CandidateFeeConfigKey = "InnerRingCandidateFee"
 	withdrawFeeConfigKey  = "WithdrawFee"
 
-	alphabetKey   = "alphabet"
 	candidatesKey = "candidates"
 
 	processingContractKey = "processingScriptHash"
@@ -71,9 +69,6 @@ func _deploy(data any, isUpdate bool) {
 		}
 	}
 
-	// initialize all storage slices
-	common.SetSerialized(ctx, alphabetKey, args.keys)
-
 	storage.Put(ctx, processingContractKey, args.addrProc)
 
 	ln := len(args.config)
@@ -106,13 +101,6 @@ func Update(script []byte, manifest []byte, data any) {
 	runtime.Log("frostfs contract updated")
 }
 
-// AlphabetAddress returns 2\3n+1 multisignature address of alphabet nodes.
-// It is used in sidechain notary disabled environment.
-func AlphabetAddress() interop.Hash160 {
-	ctx := storage.GetReadOnlyContext()
-	return multiaddress(getAlphabetNodes(ctx))
-}
-
 // InnerRingCandidates returns an array of structures that contain an Inner Ring
 // candidate node key.
 func InnerRingCandidates() []common.IRNode {
@@ -137,8 +125,7 @@ func InnerRingCandidateRemove(key interop.PublicKey) {
 	keyOwner := runtime.CheckWitness(key)
 
 	if !keyOwner {
-		multiaddr := AlphabetAddress()
-		if !runtime.CheckWitness(multiaddr) {
+		if !runtime.CheckWitness(common.AlphabetAddress()) {
 			panic("this method must be invoked by candidate or alphabet")
 		}
 	}
@@ -358,16 +345,6 @@ func Version() int {
 	return common.Version
 }
 
-// getAlphabetNodes returns a deserialized slice of nodes from storage.
-func getAlphabetNodes(ctx storage.Context) []interop.PublicKey {
-	data := storage.Get(ctx, alphabetKey)
-	if data != nil {
-		return std.Deserialize(data.([]byte)).([]interop.PublicKey)
-	}
-
-	return []interop.PublicKey{}
-}
-
 // getConfig returns the installed frostfs configuration value or nil if it is not set.
 func getConfig(ctx storage.Context, key any) interface{} {
 	postfix := key.([]byte)