diff --git a/.changeset/few-boxes-pull.md b/.changeset/few-boxes-pull.md
new file mode 100644
index 0000000000000..e624325f7e6ca
--- /dev/null
+++ b/.changeset/few-boxes-pull.md
@@ -0,0 +1,5 @@
+---
+'@eth-optimism/contracts': patch
+---
+
+Remove unused gas testing utils
diff --git a/packages/contracts/contracts/libraries/bridge/Lib_CrossDomainUtils.sol b/packages/contracts/contracts/libraries/bridge/Lib_CrossDomainUtils.sol
index 7e7ea7807705f..62c788d084a81 100644
--- a/packages/contracts/contracts/libraries/bridge/Lib_CrossDomainUtils.sol
+++ b/packages/contracts/contracts/libraries/bridge/Lib_CrossDomainUtils.sol
@@ -1,9 +1,6 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8.9;
 
-/* Library Imports */
-import { Lib_RLPReader } from "../rlp/Lib_RLPReader.sol";
-
 /**
  * @title Lib_CrossDomainUtils
  */
diff --git a/packages/contracts/contracts/test-helpers/Helper_GasMeasurer.sol b/packages/contracts/contracts/test-helpers/Helper_GasMeasurer.sol
deleted file mode 100644
index ad1ca3025f80e..0000000000000
--- a/packages/contracts/contracts/test-helpers/Helper_GasMeasurer.sol
+++ /dev/null
@@ -1,26 +0,0 @@
-// SPDX-License-Identifier: MIT
-pragma solidity ^0.8.9;
-
-contract Helper_GasMeasurer {
-    function measureCallGas(address _target, bytes memory _data) public returns (uint256) {
-        uint256 gasBefore;
-        uint256 gasAfter;
-
-        uint256 calldataStart;
-        uint256 calldataLength;
-        assembly {
-            calldataStart := add(_data, 0x20)
-            calldataLength := mload(_data)
-        }
-
-        bool success;
-        assembly {
-            gasBefore := gas()
-            success := call(gas(), _target, 0, calldataStart, calldataLength, 0, 0)
-            gasAfter := gas()
-        }
-        require(success, "Call failed, but calls we want to measure gas for should succeed!");
-
-        return gasBefore - gasAfter;
-    }
-}
diff --git a/packages/contracts/docs/Initializable.md b/packages/contracts/docs/Initializable.md
index bc953adafc465..ed0238c0c2397 100644
--- a/packages/contracts/docs/Initializable.md
+++ b/packages/contracts/docs/Initializable.md
@@ -6,7 +6,7 @@
 
 
 
-*This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.*
+*This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. [CAUTION] ==== Avoid leaving a contract uninitialized. An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed: [.hljs-theme-light.nopadding] ```*
 
 
 
diff --git a/packages/contracts/test/helpers/gas/gas.ts b/packages/contracts/test/helpers/gas/gas.ts
deleted file mode 100644
index 157ad8adb2deb..0000000000000
--- a/packages/contracts/test/helpers/gas/gas.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-import { ethers } from 'hardhat'
-import { Contract, Signer } from 'ethers'
-
-export class GasMeasurement {
-  GasMeasurementContract: Contract
-
-  public async init(wallet: Signer) {
-    this.GasMeasurementContract = await (
-      await (await ethers.getContractFactory('Helper_GasMeasurer')).deploy()
-    ).connect(wallet)
-  }
-
-  public async getGasCost(
-    targetContract: Contract,
-    methodName: string,
-    methodArgs: Array<any> = []
-  ): Promise<number> {
-    const gasCost: number =
-      await this.GasMeasurementContract.callStatic.measureCallGas(
-        targetContract.address,
-        targetContract.interface.encodeFunctionData(methodName, methodArgs)
-      )
-
-    return gasCost
-  }
-}
diff --git a/packages/contracts/test/helpers/gas/index.ts b/packages/contracts/test/helpers/gas/index.ts
deleted file mode 100644
index 1a5eaa6e16e35..0000000000000
--- a/packages/contracts/test/helpers/gas/index.ts
+++ /dev/null
@@ -1 +0,0 @@
-export * from './gas'
diff --git a/packages/contracts/test/helpers/index.ts b/packages/contracts/test/helpers/index.ts
index 7b6617a6c6f56..f36d57b484c2b 100644
--- a/packages/contracts/test/helpers/index.ts
+++ b/packages/contracts/test/helpers/index.ts
@@ -5,4 +5,3 @@ export * from './utils'
 export * from './codec'
 export * from './test-runner'
 export * from './trie'
-export * from './gas'