diff --git a/contracts/Mocks/EIP191SignerTester.sol b/contracts/Mocks/EIP191SignerTester.sol
deleted file mode 100644
index cb13dd3a2..000000000
--- a/contracts/Mocks/EIP191SignerTester.sol
+++ /dev/null
@@ -1,13 +0,0 @@
-// SPDX-License-Identifier: Apache-2.0
-pragma solidity ^0.8.4;
-
-import {ECDSA} from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
-
-contract EIP191SignerTester {
-    function toDataWithIntendedValidator(
-        address validator,
-        bytes memory dataToSign
-    ) public pure returns (bytes32) {
-        return ECDSA.toDataWithIntendedValidatorHash(validator, dataToSign);
-    }
-}
diff --git a/tests/Mocks/EIP191Signer.ts b/tests/Mocks/EIP191Signer.ts
deleted file mode 100644
index f5cb19c9f..000000000
--- a/tests/Mocks/EIP191Signer.ts
+++ /dev/null
@@ -1,37 +0,0 @@
-import { expect } from 'chai';
-import { ethers } from 'hardhat';
-import { EIP191Signer } from '@lukso/eip191-signer.js';
-
-import {
-  EIP191SignerTester__factory,
-  UniversalProfile__factory,
-  LSP6KeyManager__factory,
-} from '../../types';
-
-describe('EIP191Signer', () => {
-  describe('when using `toDataWithIntendedValidator(...)`', () => {
-    it('should return the same hash than the EIP191Signer library', async () => {
-      const data = 'example';
-
-      const accounts = await ethers.getSigners();
-      const owner = accounts[0];
-
-      const universalProfile = await new UniversalProfile__factory(owner).deploy(owner.address);
-      const keyManager = await new LSP6KeyManager__factory(accounts[0]).deploy(
-        universalProfile.address,
-      );
-
-      const eip191SignerContract = await new EIP191SignerTester__factory(accounts[0]).deploy();
-      const eip191SignerLib = new EIP191Signer();
-
-      const libraryResult = eip191SignerLib.hashDataWithIntendedValidator(keyManager.address, data);
-
-      const solidityResult = await eip191SignerContract.toDataWithIntendedValidator(
-        keyManager.address,
-        ethers.utils.toUtf8Bytes(data),
-      );
-
-      expect(solidityResult).to.equal(libraryResult);
-    });
-  });
-});