op-deployer: Remove unused Isthmus code path (#13668)

op-deployer/pkg/deployer/opcm/opchain.go

@@ -44,11 +44,6 @@ func (input *DeployOPChainInputV160) InputSet() bool {
 	return true
 }
 
-type DeployOPChainInputIsthmus struct {
-	DeployOPChainInputV160
-	SystemConfigFeeAdmin common.Address
-}
-
 type DeployOPChainOutput struct {
 	OpChainProxyAdmin                 common.Address
 	AddressManager                    common.Address
@@ -77,15 +72,7 @@ type DeployOPChainScript struct {
 }
 
 func DeployOPChainV160(host *script.Host, input DeployOPChainInputV160) (DeployOPChainOutput, error) {
-	return deployOPChain(host, input)
-}
-
-func DeployOPChainIsthmus(host *script.Host, input DeployOPChainInputIsthmus) (DeployOPChainOutput, error) {
-	return deployOPChain(host, input)
-}
-
-func deployOPChain[T any](host *script.Host, input T) (DeployOPChainOutput, error) {
-	return RunScriptSingle[T, DeployOPChainOutput](host, input, "DeployOPChain.s.sol", "DeployOPChain")
+	return RunScriptSingle[DeployOPChainInputV160, DeployOPChainOutput](host, input, "DeployOPChain.s.sol", "DeployOPChain")
 }
 
 type ReadImplementationAddressesInput struct {

op-deployer/pkg/deployer/pipeline/opchain.go

@@ -24,34 +24,15 @@ func DeployOPChain(env *Env, intent *state.Intent, st *state.State, chainID comm
 		return fmt.Errorf("failed to get chain intent: %w", err)
 	}
 
-	var opcmAddr common.Address
-	var deployFunc func() (opcm.DeployOPChainOutput, error)
-	switch intent.L1ContractsLocator.Tag {
-	case standard.ContractsV160Tag, standard.ContractsV170Beta1L2Tag:
-		deployFunc = func() (opcm.DeployOPChainOutput, error) {
-			input, err := makeDCIV160(intent, thisIntent, chainID, st)
-			if err != nil {
-				return opcm.DeployOPChainOutput{}, fmt.Errorf("error making deploy OP chain input: %w", err)
-			}
+	var dco opcm.DeployOPChainOutput
+	lgr.Info("deploying OP chain using local allocs", "id", chainID.Hex())
 
-			opcmAddr = input.Opcm
-			return opcm.DeployOPChainV160(env.L1ScriptHost, input)
-		}
-	default:
-		deployFunc = func() (opcm.DeployOPChainOutput, error) {
-			input, err := makeDCIIsthmus(intent, thisIntent, chainID, st)
+	dci, err := makeDCIV160(intent, thisIntent, chainID, st)
 	if err != nil {
-				return opcm.DeployOPChainOutput{}, fmt.Errorf("error making deploy OP chain input: %w", err)
-			}
-
-			opcmAddr = input.Opcm
-			return opcm.DeployOPChainIsthmus(env.L1ScriptHost, input)
-		}
+		return fmt.Errorf("error making deploy OP chain input: %w", err)
 	}
 
-	var dco opcm.DeployOPChainOutput
-	lgr.Info("deploying OP chain using local allocs", "id", chainID.Hex())
-	dco, err = deployFunc()
+	dco, err = opcm.DeployOPChainV160(env.L1ScriptHost, dci)
 	if err != nil {
 		return fmt.Errorf("error deploying OP chain: %w", err)
 	}
@@ -67,7 +48,7 @@ func DeployOPChain(env *Env, intent *state.Intent, st *state.State, chainID comm
 
 	readInput := opcm.ReadImplementationAddressesInput{
 		DeployOPChainOutput: dco,
-		Opcm:                opcmAddr,
+		Opcm:                dci.Opcm,
 		Release:             release,
 	}
 	impls, err := opcm.ReadImplementationAddresses(env.L1ScriptHost, readInput)
@@ -151,18 +132,6 @@ func makeDCIV160(intent *state.Intent, thisIntent *state.ChainIntent, chainID co
 	}, nil
 }
 
-func makeDCIIsthmus(intent *state.Intent, thisIntent *state.ChainIntent, chainID common.Hash, st *state.State) (opcm.DeployOPChainInputIsthmus, error) {
-	dci, err := makeDCIV160(intent, thisIntent, chainID, st)
-	if err != nil {
-		return opcm.DeployOPChainInputIsthmus{}, fmt.Errorf("error making deploy OP chain input: %w", err)
-	}
-
-	return opcm.DeployOPChainInputIsthmus{
-		DeployOPChainInputV160: dci,
-		SystemConfigFeeAdmin:   common.Address{'D', 'E', 'A', 'D'},
-	}, nil
-}
-
 func makeChainState(chainID common.Hash, dco opcm.DeployOPChainOutput) *state.ChainState {
 	return &state.ChainState{
 		ID:                                        chainID,