specs: remove Attestation DisputeGame interface

specs/dispute-game-interface.md

@@ -236,46 +236,4 @@ interface IDisputeGame {
     /// @return extraData_ Any extra data supplied to the dispute game contract by the creator.
     function gameData() external view returns (GameType gameType_, Claim rootClaim_, bytes memory extraData_);
 }
-
-////////////////////////////////////////////////////////////////
-//              OUTPUT ATTESTATION DISPUTE GAME               //
-////////////////////////////////////////////////////////////////
-
-/// @title IDisputeGame_OutputAttestation
-/// @notice The interface for an attestation-based DisputeGame meant to contest output
-///         proposals in Optimism's `L2OutputOracle` contract.
-interface IDisputeGame_OutputAttestation is IDisputeGame {
-    /// @notice A mapping of addresses from the `signerSet` to booleans signifying whether
-    ///         or not they have authorized the `rootClaim` to be invalidated.
-    function challenges(address challenger) external view returns (bool _challenged);
-
-    /// @notice The signer set consists of authorized public keys that may challenge the `rootClaim`.
-    ///         This set of signers is snapshotted from the `SystemConfig` upon creation of the game.
-    /// @return An array of authorized signers from the `SystemConfig` contract.
-    function frozenSignerSet() external view returns (address[] memory _signers);
-
-    /// @notice The signer set consists of authorized public keys that may challenge the `rootClaim`.
-    /// @return _isAuthorized Whether or not the `addr` is part of the frozen signer set.
-    function signerSet(address addr) external view override returns (bool _isAuthorized);
-
-    /// @notice The amount of signatures required to successfully challenge the `rootClaim`
-    ///         output proposal. Once this threshold is met by members of the `signerSet`
-    ///         calling `challenge`, the game will be resolved to `CHALLENGER_WINS`.
-    /// @custom:invariant The `signatureThreshold` may never be greater than the length of the `signerSet`.
-    function frozenSignatureThreshold() external view returns (uint256 _signatureThreshold);
-
-    /// @notice Returns the L2 Block Number that the `rootClaim` commits to. Exists within the `extraData`.
-    function l2BlockNumber() public view returns (uint256 _l2BlockNumber);
-
-    /// @notice Challenge the `rootClaim`.
-    /// @dev - If the `ecrecover`ed address that created the signature is not a part of the
-    ///      signer set returned by `signerSet`, this function should revert.
-    ///      - If the signature provided is the signature that breaches the signature threshold,
-    ///      the function should call the `resolve` function to resolve the game as `CHALLENGER_WINS`.
-    ///      - When the game resolves, the bond attached to the root claim should be distributed among
-    ///      the signers who participated in challenging the invalid claim.
-    /// @param signature An EIP-712 signature committing to the `rootClaim` and `l2BlockNumber` (within the `extraData`)
-    ///                  from a key that exists within the `signerSet`.
-    function challenge(bytes calldata signature) external;
-}
 ```