Chore/remove unused contracts

README.md

@@ -36,14 +36,11 @@ npx hardhat run scripts/tools/chain.ts --network <sepolia|localhost> # prints th
 
 ```
 CanonicalStateChain.sol – Where the rollup chain is stored.
-Treasury.sol – Where fees are stored and challenges can be reimbursed.
 Challenge
   └ ChallengeManager.sol – A Collection of the challenges below that can be called to rollback the chain if needed.
   └ ChallengeBase.sol – Base contract for all challenges, allows getting and setting the challenge window, and the challenge fee.
   └ ChallengeHeader.sol – Challenge a block header for validity.
   └ ChallengeDataAvailability.sol – Claim that block data is unavailable.
-  └ ChallengeExecution.sol – Claim incorrect stateroot using mips.
-  └ mips – Contains MIPS contracts.
 ```
 
 ## Running locally

contracts/challenge/Challenge.sol

@@ -26,25 +26,15 @@ contract Challenge is
     ChallengeL2Header
 {
     /// @notice Initializes the Challenge contract.
-    /// @param _treasury - The address of the treasury contract.
     /// @param _chain - The address of the chain contract.
     /// @param _daOracle - The address of the data availability oracle.
-    /// @param _mipsChallenge - The address of the MIPS challenge contract.
     /// @param _chainOracle - The address of the chain oracle contract.
     function initialize(
-        address _treasury,
         address _chain,
         address _daOracle,
-        address _mipsChallenge,
         address _chainOracle
     ) public initializer {
-        __ChallengeBase_init(
-            _treasury,
-            _chain,
-            _daOracle,
-            _mipsChallenge,
-            _chainOracle
-        );
+        __ChallengeBase_init(_chain, _daOracle, _chainOracle);
 
         __ChallengeHeader_init();
     }

contracts/challenge/ChallengeBase.sol

@@ -4,10 +4,8 @@ pragma solidity ^0.8.0;
 import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
 import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
 import "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol";
-import "../interfaces/ITreasury.sol";
 import "../interfaces/IChainOracle.sol";
 import "../interfaces/ICanonicalStateChain.sol";
-import "./mips/IMipsChallenge.sol";
 import "blobstream-contracts/src/IDAOracle.sol";
 
 /// @title  ChallengeBase
@@ -40,18 +38,12 @@ contract ChallengeBase is
     /// @notice The address of the chain oracle.
     IChainOracle public chainOracle;
 
-    /// @notice The address of the treasury to pay out challenges.
-    ITreasury public treasury;
-
     /// @notice The address of the canonical state chain.
     ICanonicalStateChain public chain;
 
     /// @notice The address of the data availability oracle.
     IDAOracle public daOracle;
 
-    /// @notice The address of the MIPS challenge contract.
-    IMipsChallenge public mipsChallenge;
-
     /// @notice This function is a special internal function that's part of
     ///         the UUPS upgradeable contract's lifecycle. When you want to
     ///         upgrade the contract to a new version, _authorizeUpgrade is
@@ -60,18 +52,14 @@ contract ChallengeBase is
     /// @dev Only the owner can call this function.
     function _authorizeUpgrade(address) internal override onlyOwner {}
 
-    /// @notice Initializes the contract with the treasury, chain, daOracle,
-    ///         mipsChallenge, and chainOracle addresses.
-    /// @param _treasury The address of the treasury.
+    /// @notice Initializes the contract with the chain, daOracle,
+    ///         and chainOracle addresses.
     /// @param _chain The address of the canonical state chain.
     /// @param _daOracle The address of the data availability oracle.
-    /// @param _mipsChallenge The address of the MIPS challenge contract.
     /// @param _chainOracle The address of the chain oracle.
     function __ChallengeBase_init(
-        address _treasury,
         address _chain,
         address _daOracle,
-        address _mipsChallenge,
         address _chainOracle
     ) internal {
         __UUPSUpgradeable_init();
@@ -83,10 +71,8 @@ contract ChallengeBase is
         challengeFee = 1.5 ether;
         challengeReward = 0.2 ether; // unused.
 
-        treasury = ITreasury(_treasury); // TODO: remove
         chain = ICanonicalStateChain(_chain);
         daOracle = IDAOracle(_daOracle);
-        mipsChallenge = IMipsChallenge(_mipsChallenge);
         chainOracle = IChainOracle(_chainOracle);
     }