fix(ctb): remove unnecessary L2OO init param

Removes an unnecessary parameter from the L200 initialization function
since this parameter is already set in the constructor.

.changeset/poor-singers-dance.md

+---
+'@eth-optimism/contracts-bedrock': patch
+---
+
+Removes an unnecessary initializer parameter in the L200

op-chain-ops/genesis/layer_one.go

@@ -73,7 +73,6 @@ func BuildL1DeveloperGenesis(config *DeployConfig) (*core.Genesis, error) {
 	data, err := l2ooABI.Pack(
 		"initialize",
 		config.L2OutputOracleGenesisL2Output,
-		big.NewInt(0),
 		config.L2OutputOracleProposer,
 		config.L2OutputOracleOwner,
 	)

packages/contracts-bedrock/contracts/L1/L2OutputOracle.sol

@@ -138,7 +138,27 @@ contract L2OutputOracle is OwnableUpgradeable, Semver {
         STARTING_TIMESTAMP = _startingTimestamp;
         L2_BLOCK_TIME = _l2BlockTime;
 
-        initialize(_genesisL2Output, _startingBlockNumber, _proposer, _owner);
+        initialize(_genesisL2Output, _proposer, _owner);
+    }
+
+    /**
+     * @notice Initializer.
+     *
+     * @param _genesisL2Output     The initial L2 output of the L2 chain.
+     * @param _proposer            The address of the proposer.
+     * @param _owner               The address of the owner.
+     */
+    function initialize(
+        bytes32 _genesisL2Output,
+        address _proposer,
+        address _owner
+    ) public initializer {
+        require(_proposer != _owner, "L2OutputOracle: proposer cannot be the same as the owner");
+        l2Outputs[STARTING_BLOCK_NUMBER] = Types.OutputProposal(_genesisL2Output, block.timestamp);
+        latestBlockNumber = STARTING_BLOCK_NUMBER;
+        __Ownable_init();
+        changeProposer(_proposer);
+        _transferOwnership(_owner);
     }
 
     /**
@@ -257,28 +277,6 @@ contract L2OutputOracle is OwnableUpgradeable, Semver {
         return output;
     }
 
-    /**
-     * @notice Initializer.
-     *
-     * @param _genesisL2Output     The initial L2 output of the L2 chain.
-     * @param _startingBlockNumber The timestamp to start L2 block at.
-     * @param _proposer            The address of the proposer.
-     * @param _owner               The address of the owner.
-     */
-    function initialize(
-        bytes32 _genesisL2Output,
-        uint256 _startingBlockNumber,
-        address _proposer,
-        address _owner
-    ) public initializer {
-        require(_proposer != _owner, "L2OutputOracle: proposer cannot be the same as the owner");
-        l2Outputs[_startingBlockNumber] = Types.OutputProposal(_genesisL2Output, block.timestamp);
-        latestBlockNumber = _startingBlockNumber;
-        __Ownable_init();
-        changeProposer(_proposer);
-        _transferOwnership(_owner);
-    }
-
     /**
      * @notice Overrides the standard implementation of transferOwnership
      *         to add the requirement that the owner and proposer are distinct.

packages/contracts-bedrock/contracts/test/CommonTest.t.sol

@@ -130,13 +130,14 @@ contract L2OutputOracle_Initializer is CommonTest {
         vm.prank(multisig);
         proxy.upgradeToAndCall(
             address(oracleImpl),
-            abi.encodeWithSelector(
-                L2OutputOracle.initialize.selector,
+            abi.encodeCall(
+                L2OutputOracle.initialize,
+                (
                     genesisL2Output,
-                startingBlockNumber,
                     proposer,
                     owner
                 )
+            )
         );
         oracle = L2OutputOracle(address(proxy));
         vm.label(address(oracle), "L2OutputOracle");

packages/contracts-bedrock/contracts/test/L2OutputOracle.t.sol

@@ -384,7 +384,6 @@ contract L2OutputOracleUpgradeable_Test is L2OutputOracle_Initializer {
         vm.expectRevert("Initializable: contract is already initialized");
         L2OutputOracle(payable(proxy)).initialize(
             genesisL2Output,
-            startingBlockNumber,
             proposer,
             owner
         );
@@ -394,7 +393,6 @@ contract L2OutputOracleUpgradeable_Test is L2OutputOracle_Initializer {
         vm.expectRevert("Initializable: contract is already initialized");
         L2OutputOracle(oracleImpl).initialize(
             genesisL2Output,
-            startingBlockNumber,
             proposer,
             owner
         );

packages/contracts-bedrock/deploy/001-InitImplementations.deploy.ts

@@ -10,7 +10,6 @@ const upgradeABIs = {
     'initialize(bytes32,uint256,address,address)',
     [
       deployConfig.l2OutputOracleGenesisL2Output,
-      deployConfig.l2OutputOracleStartingBlockNumber,
       deployConfig.l2OutputOracleProposer,
       deployConfig.l2OutputOracleOwner,
     ],