From 64233361752cf6039ca966137c3b121cb49ce8d4 Mon Sep 17 00:00:00 2001
From: Dhruba Basu <7675102+dhrubabasu@users.noreply.github.com>
Date: Mon, 6 May 2024 14:27:33 -0400
Subject: [PATCH] Remove unused `Metadata` struct (#3001)

---
 go.mod                               |  2 +-
 go.sum                               |  4 +-
 vms/components/avax/metadata.go      | 59 ----------------------------
 vms/components/avax/metadata_test.go | 22 -----------
 4 files changed, 3 insertions(+), 84 deletions(-)
 delete mode 100644 vms/components/avax/metadata.go
 delete mode 100644 vms/components/avax/metadata_test.go

diff --git a/go.mod b/go.mod
index 6babb1067ba9..173663337957 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ go 1.21.9
 require (
 	github.com/DataDog/zstd v1.5.2
 	github.com/NYTimes/gziphandler v1.1.1
-	github.com/ava-labs/coreth v0.13.3-rc.2
+	github.com/ava-labs/coreth v0.13.4-0.20240506124912-82b6c4e91557
 	github.com/ava-labs/ledger-avalanche/go v0.0.0-20231102202641-ae2ebdaeac34
 	github.com/btcsuite/btcd/btcutil v1.1.3
 	github.com/cockroachdb/pebble v0.0.0-20230906160148-46873a6a7a06
diff --git a/go.sum b/go.sum
index ee53bd2b070c..41df2f526573 100644
--- a/go.sum
+++ b/go.sum
@@ -60,8 +60,8 @@ github.com/ajg/form v1.5.1/go.mod h1:uL1WgH+h2mgNtvBq0339dVnzXdBETtL2LeUXaIv25UY
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156 h1:eMwmnE/GDgah4HI848JfFxHt+iPb26b4zyfspmqY0/8=
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156/go.mod h1:Cb/ax3seSYIx7SuZdm2G2xzfwmv3TPSk2ucNfQESPXM=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
-github.com/ava-labs/coreth v0.13.3-rc.2 h1:lhyQwln6at1DTs1O586dMSAtGtSfQWlt2WH+Z2kgYdQ=
-github.com/ava-labs/coreth v0.13.3-rc.2/go.mod h1:4l15XGak3FklhIb7CtlC/1YVwGAfMl83R2zd2N0hNE0=
+github.com/ava-labs/coreth v0.13.4-0.20240506124912-82b6c4e91557 h1:92JWd4u2pqpO551gXUIZ/qDZu3l7vn8jIxX2qRyyFwM=
+github.com/ava-labs/coreth v0.13.4-0.20240506124912-82b6c4e91557/go.mod h1:yMIxezDyB/5moKt8LlATlfwR/Z5cmipY3gUQ1SqHvQ0=
 github.com/ava-labs/ledger-avalanche/go v0.0.0-20231102202641-ae2ebdaeac34 h1:mg9Uw6oZFJKytJxgxnl3uxZOs/SB8CVHg6Io4Tf99Zc=
 github.com/ava-labs/ledger-avalanche/go v0.0.0-20231102202641-ae2ebdaeac34/go.mod h1:pJxaT9bUgeRNVmNRgtCHb7sFDIRKy7CzTQVi8gGNT6g=
 github.com/aymerick/raymond v2.0.3-0.20180322193309-b565731e1464+incompatible/go.mod h1:osfaiScAUVup+UC9Nfq76eWqDhXlp+4UYaA8uhTBO6g=
diff --git a/vms/components/avax/metadata.go b/vms/components/avax/metadata.go
deleted file mode 100644
index 1630484131a8..000000000000
--- a/vms/components/avax/metadata.go
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (C) 2019-2024, Ava Labs, Inc. All rights reserved.
-// See the file LICENSE for licensing terms.
-
-package avax
-
-import (
-	"errors"
-
-	"github.com/ava-labs/avalanchego/ids"
-	"github.com/ava-labs/avalanchego/utils/hashing"
-	"github.com/ava-labs/avalanchego/vms/components/verify"
-)
-
-var (
-	errNilMetadata           = errors.New("nil metadata is not valid")
-	errMetadataNotInitialize = errors.New("metadata was never initialized and is not valid")
-
-	_ verify.Verifiable = (*Metadata)(nil)
-)
-
-// TODO: Delete this once the downstream dependencies have been updated.
-type Metadata struct {
-	id            ids.ID // The ID of this data
-	unsignedBytes []byte // Unsigned byte representation of this data
-	bytes         []byte // Byte representation of this data
-}
-
-// Initialize set the bytes and ID
-func (md *Metadata) Initialize(unsignedBytes, bytes []byte) {
-	md.id = hashing.ComputeHash256Array(bytes)
-	md.unsignedBytes = unsignedBytes
-	md.bytes = bytes
-}
-
-// ID returns the unique ID of this data
-func (md *Metadata) ID() ids.ID {
-	return md.id
-}
-
-// UnsignedBytes returns the unsigned binary representation of this data
-func (md *Metadata) Bytes() []byte {
-	return md.unsignedBytes
-}
-
-// Bytes returns the binary representation of this data
-func (md *Metadata) SignedBytes() []byte {
-	return md.bytes
-}
-
-func (md *Metadata) Verify() error {
-	switch {
-	case md == nil:
-		return errNilMetadata
-	case md.id == ids.Empty:
-		return errMetadataNotInitialize
-	default:
-		return nil
-	}
-}
diff --git a/vms/components/avax/metadata_test.go b/vms/components/avax/metadata_test.go
deleted file mode 100644
index 9569e3e3a465..000000000000
--- a/vms/components/avax/metadata_test.go
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (C) 2019-2024, Ava Labs, Inc. All rights reserved.
-// See the file LICENSE for licensing terms.
-
-package avax
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/require"
-)
-
-func TestMetaDataVerifyNil(t *testing.T) {
-	md := (*Metadata)(nil)
-	err := md.Verify()
-	require.ErrorIs(t, err, errNilMetadata)
-}
-
-func TestMetaDataVerifyUninitialized(t *testing.T) {
-	md := &Metadata{}
-	err := md.Verify()
-	require.ErrorIs(t, err, errMetadataNotInitialize)
-}