diff --git a/packages/contracts/test/helpers/ExampleERC1271.sol b/packages/contracts/test/helpers/ExampleERC1271.sol
index 52c6333f..d53cb9a9 100644
--- a/packages/contracts/test/helpers/ExampleERC1271.sol
+++ b/packages/contracts/test/helpers/ExampleERC1271.sol
@@ -25,64 +25,4 @@ contract ExampleERC1271 is IERC1271, Ownable {
             return 0xffffffff;
         }
     }
-
-    // /**
-    //  * @notice Recover the signer of hash, assuming it's an EOA account
-    //  * @dev Only for EthSign signatures
-    //  * @param _hash       Hash of message that was signed
-    //  * @param _signature  Signature encoded as (bytes32 r, bytes32 s, uint8 v)
-    //  */
-    // function recoverSigner(
-    //     bytes32 _hash,
-    //     bytes memory _signature
-    // ) internal pure returns (address signer) {
-    //     require(
-    //         _signature.length == 65,
-    //         "SignatureValidator#recoverSigner: invalid signature length"
-    //     );
-
-    //     // Variables are not scoped in Solidity.
-    //     uint8 v = uint8(_signature[64]);
-    //     bytes32 r = _signature.readBytes32(0);
-    //     bytes32 s = _signature.readBytes32(32);
-
-    //     // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
-    //     // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
-    //     // the valid range for s in (281): 0 < s < secp256k1n ÷ 2 + 1, and for v in (282): v ∈ {27, 28}. Most
-    //     // signatures from current libraries generate a unique signature with an s-value in the lower half order.
-    //     //
-    //     // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
-    //     // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
-    //     // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
-    //     // these malleable signatures as well.
-    //     //
-    //     // Source OpenZeppelin
-    //     // https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/cryptography/ECDSA.sol
-
-    //     if (
-    //         uint256(s) >
-    //         0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0
-    //     ) {
-    //         revert(
-    //             "SignatureValidator#recoverSigner: invalid signature 's' value"
-    //         );
-    //     }
-
-    //     if (v != 27 && v != 28) {
-    //         revert(
-    //             "SignatureValidator#recoverSigner: invalid signature 'v' value"
-    //         );
-    //     }
-
-    //     // Recover ECDSA signer
-    //     signer = ecrecover(_hash, v, r, s);
-
-    //     // Prevent signer from being 0x0
-    //     require(
-    //         signer != address(0x0),
-    //         "SignatureValidator#recoverSigner: INVALID_SIGNER"
-    //     );
-
-    //     return signer;
-    // }
 }