move legacy predeploys to a different file

op-bindings/predeploys/addresses.go

@@ -3,7 +3,6 @@ package predeploys
 import "github.com/ethereum/go-ethereum/common"
 
 const (
-	LegacyERC20ETH                = "0xDeadDeAddeAddEAddeadDEaDDEAdDeaDDeAD0000"
 	L2ToL1MessagePasser           = "0x4200000000000000000000000000000000000016"
 	DeployerWhitelist             = "0x4200000000000000000000000000000000000002"
 	WETH9                         = "0x4200000000000000000000000000000000000006"
@@ -24,7 +23,6 @@ const (
 )
 
 var (
-	LegacyERC20ETHAddr                = common.HexToAddress(LegacyERC20ETH)
 	L2ToL1MessagePasserAddr           = common.HexToAddress(L2ToL1MessagePasser)
 	DeployerWhitelistAddr             = common.HexToAddress(DeployerWhitelist)
 	WETH9Addr                         = common.HexToAddress(WETH9)
@@ -58,7 +56,6 @@ func IsProxied(predeployAddr common.Address) bool {
 }
 
 func init() {
-	Predeploys["LegacyERC20ETHAddr"] = &LegacyERC20ETHAddr
 	Predeploys["L2ToL1MessagePasser"] = &L2ToL1MessagePasserAddr
 	Predeploys["DeployerWhitelist"] = &DeployerWhitelistAddr
 	Predeploys["WETH9"] = &WETH9Addr

op-bindings/predeploys/legacy_addresses.go

+package predeploys
+
+import "github.com/ethereum/go-ethereum/common"
+
+const (
+	LegacyERC20ETH = "0xDeadDeAddeAddEAddeadDEaDDEAdDeaDDeAD0000"
+)
+
+var (
+	LegacyERC20ETHAddr = common.HexToAddress(LegacyERC20ETH)
+)