[MPTWG] Deadcode round (privacy-scaling-explorations#1590)

### Description

Remove dead code in MPTWG to improve readability.

### Issue Link


### Type of change

Bug fix (non-breaking change which fixes an issue)


(wait CI update in privacy-scaling-explorations#1591)

Author: ChihChengLiang

mpt-witness-generator/go.mod

@@ -3,8 +3,6 @@ module github.com/privacy-scaling-explorations/mpt-witness-generator
 go 1.16
 
 require (
-	github.com/VictoriaMetrics/fastcache v1.6.0 // indirect
-	github.com/ethereum/go-ethereum v1.10.8 // indirect
-	github.com/holiman/uint256 v1.2.0 // indirect
-	golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2 // indirect
+	github.com/ethereum/go-ethereum v1.10.8
+	golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2
 )

mpt-witness-generator/go.sum

@@ -2079,196 +2079,6 @@ func TestLeafWithMoreNibbles(t *testing.T) {
 	oracle.PreventHashingInSecureTrie = false
 }
 
-// Note: this requires MockProver with config param 11
-/*
-func TestNonHashedBranchInBranch(t *testing.T) {
-	blockNum := 0
-	blockNumberParent := big.NewInt(int64(blockNum))
-	blockHeaderParent := oracle.PrefetchBlock(blockNumberParent, true, nil)
-	database := state.NewDatabase(blockHeaderParent)
-	statedb, _ := state.New(blockHeaderParent.Root, database, nil)
-	addr := common.HexToAddress("0x50efbf12580138bc623c95757286df4e24eb81c9")
-
-	statedb.DisableLoadingRemoteAccounts()
-
-	statedb.CreateAccount(addr)
-
-	oracle.PreventHashingInSecureTrie = true // to store the unchanged key
-
-	val1 := common.BigToHash(big.NewInt(int64(1)))
-
-	key1Hex := "0x1000000000000000000000000000000000000000000000000000000000000000"
-	key2Hex := "0x2000000000000000000000000000000000000000000000000000000000000000"
-	key1 := common.HexToHash(key1Hex)
-	key2 := common.HexToHash(key2Hex)
-	fmt.Println(key2)
-
-	statedb.SetState(addr, key2, val1)
-
-	iters := 57 // making the last branch shorter than 32 bytes
-	for i := 0; i < iters; i++ {
-		fmt.Println("====")
-		fmt.Println(key1)
-
-		statedb.SetState(addr, key1, val1)
-
-		if i == iters - 1 {
-			break
-		}
-
-		key1Hex = replaceAtIndex(key1Hex, 49, i + 3) // 49 is 1, 50 is 2, ...
-		key1 = common.HexToHash(key1Hex)
-	}
-
-	statedb.IntermediateRoot(false)
-
-	val := common.BigToHash(big.NewInt(int64(17)))
-	trieMod := TrieModification{
-    	Type: StorageChanged,
-		Key: key1,
-		Value: val,
-		Address: addr,
-	}
-	trieModifications := []TrieModification{trieMod}
-
-	GenerateProof("NonHashedBranchInBranch", trieModifications, statedb)
-
-	oracle.PreventHashingInSecureTrie = false
-}
-
-func replaceAtIndex(in string, r rune, i int) string {
-    out := []rune(in)
-    out[i] = r
-    return string(out)
-}
-
-// Note: this requires MockProver with config param 11
-func TestNonHashedExtensionNodeInBranch(t *testing.T) {
-	blockNum := 0
-	blockNumberParent := big.NewInt(int64(blockNum))
-	blockHeaderParent := oracle.PrefetchBlock(blockNumberParent, true, nil)
-	database := state.NewDatabase(blockHeaderParent)
-	statedb, _ := state.New(blockHeaderParent.Root, database, nil)
-	addr := common.HexToAddress("0x50efbf12580138bc623c95757286df4e24eb81c9")
-
-	statedb.DisableLoadingRemoteAccounts()
-
-	statedb.CreateAccount(addr)
-
-	oracle.PreventHashingInSecureTrie = true // to store the unchanged key
-
-	val1 := common.BigToHash(big.NewInt(int64(1)))
-
-	key1Hex := "0x1000000000000000000000000000000000000000000000000000000000000000"
-	key2Hex := "0x2000000000000000000000000000000000000000000000000000000000000000"
-	key1 := common.HexToHash(key1Hex)
-	key2 := common.HexToHash(key2Hex)
-	fmt.Println(key2)
-
-	statedb.SetState(addr, key2, val1)
-
-	iters := 58 // make the extension node shorter than 32
-	for i := 0; i < iters; i++ {
-		statedb.SetState(addr, key1, val1)
-
-		if i == iters - 1 {
-			break
-		}
-
-		makeExtension := false
-		if i == iters - 2 {
-			makeExtension = true
-		}
-
-		if !makeExtension {
-			key1Hex = replaceAtIndex(key1Hex, 49, i + 3)
-		} else {
-			key1Hex = replaceAtIndex(key1Hex, 49, i + 1 + 3)
-		}
-
-		key1 = common.HexToHash(key1Hex)
-	}
-
-	statedb.IntermediateRoot(false)
-
-	val := common.BigToHash(big.NewInt(int64(17)))
-	trieMod := TrieModification{
-    	Type: StorageChanged,
-		Key: key1,
-		Value: val,
-		Address: addr,
-	}
-	trieModifications := []TrieModification{trieMod}
-
-	GenerateProof("NonHashedExtensionNodeInBranch", trieModifications, statedb)
-
-	oracle.PreventHashingInSecureTrie = false
-}
-
-// Note: this requires MockProver with config param 11
-func TestNonHashedExtensionNodeInBranchTwoNibbles(t *testing.T) {
-	blockNum := 0
-	blockNumberParent := big.NewInt(int64(blockNum))
-	blockHeaderParent := oracle.PrefetchBlock(blockNumberParent, true, nil)
-	database := state.NewDatabase(blockHeaderParent)
-	statedb, _ := state.New(blockHeaderParent.Root, database, nil)
-	addr := common.HexToAddress("0x50efbf12580138bc623c95757286df4e24eb81c9")
-
-	statedb.DisableLoadingRemoteAccounts()
-
-	statedb.CreateAccount(addr)
-
-	oracle.PreventHashingInSecureTrie = true // to store the unchanged key
-
-	val1 := common.BigToHash(big.NewInt(int64(1)))
-
-	key1Hex := "0x1000000000000000000000000000000000000000000000000000000000000000"
-	key2Hex := "0x2000000000000000000000000000000000000000000000000000000000000000"
-	key1 := common.HexToHash(key1Hex)
-	key2 := common.HexToHash(key2Hex)
-	fmt.Println(key2)
-
-	statedb.SetState(addr, key2, val1)
-
-	iters := 58 // make the extension node shorter than 32
-	for i := 0; i < iters; i++ {
-		statedb.SetState(addr, key1, val1)
-
-		if i == iters - 1 {
-			break
-		}
-
-		makeExtension := false
-		if i == iters - 2 {
-			makeExtension = true
-		}
-
-		if !makeExtension {
-			key1Hex = replaceAtIndex(key1Hex, 49, i + 3)
-		} else {
-			key1Hex = replaceAtIndex(key1Hex, 49, i + 2 + 3) // +2 to have two nibbles
-		}
-
-		key1 = common.HexToHash(key1Hex)
-	}
-
-	statedb.IntermediateRoot(false)
-
-	val := common.BigToHash(big.NewInt(int64(17)))
-	trieMod := TrieModification{
-    	Type: StorageChanged,
-		Key: key1,
-		Value: val,
-		Address: addr,
-	}
-	trieModifications := []TrieModification{trieMod}
-
-	GenerateProof("NonHashedExtensionNodeInBranchTwoNibbles", trieModifications, statedb)
-
-	oracle.PreventHashingInSecureTrie = false
-}
-*/
-
 func TestBranchAfterExtNode(t *testing.T) {
 	blockNum := 0
 	blockNumberParent := big.NewInt(int64(blockNum))