fix: audit L-07

src/auth/Auth.sol

@@ -3,12 +3,10 @@ pragma solidity ^0.8.24;
 
 import { BootloaderAuth } from "./BootloaderAuth.sol";
 import { SelfAuth } from "./SelfAuth.sol";
-import { HookAuth } from "./HookAuth.sol";
-import { Errors } from "../libraries/Errors.sol";
 
 /**
  * @title Auth
  * @notice Abstract contract that organizes authentication logic for the contract
  * @author https://getclave.io
  */
-abstract contract Auth is BootloaderAuth, SelfAuth, HookAuth {}
+abstract contract Auth is BootloaderAuth, SelfAuth {}

src/handlers/ERC1271Handler.sol

@@ -3,7 +3,6 @@ pragma solidity ^0.8.24;
 
 import { IERC1271Upgradeable } from "@openzeppelin/contracts-upgradeable/interfaces/IERC1271Upgradeable.sol";
 import { ECDSA } from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
-import { Transaction } from "@matterlabs/zksync-contracts/l2/system-contracts/libraries/TransactionHelper.sol";
 import { EIP712 } from "@openzeppelin/contracts/utils/cryptography/EIP712.sol";
 
 import { SignatureDecoder } from "../libraries/SignatureDecoder.sol";

src/interfaces/ISsoAccount.sol

@@ -4,7 +4,6 @@ pragma solidity ^0.8.24;
 import { IAccount } from "@matterlabs/zksync-contracts/l2/system-contracts/interfaces/IAccount.sol";
 
 import { IERC1271Upgradeable } from "@openzeppelin/contracts-upgradeable/interfaces/IERC1271Upgradeable.sol";
-import { IERC777Recipient } from "@openzeppelin/contracts/token/ERC777/IERC777Recipient.sol";
 import { IERC721Receiver } from "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";
 import { IERC1155Receiver } from "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol";
 

src/libraries/Errors.sol

@@ -16,7 +16,6 @@ library Errors {
 
   // Auth errors
   error NOT_FROM_BOOTLOADER(address notBootloader);
-  error NOT_FROM_HOOK(address notHook);
   error NOT_FROM_SELF(address notSelf);
 
   // Batch caller errors

src/libraries/SignatureDecoder.sol

@@ -1,8 +1,6 @@
 // SPDX-License-Identifier: GPL-3.0
 pragma solidity ^0.8.24;
 
-import { Errors } from "../libraries/Errors.sol";
-
 library SignatureDecoder {
   // Decode transaction.signature into signature, validator and hook data
   function decodeSignature(

src/managers/HookManager.sol

@@ -124,7 +124,7 @@ abstract contract HookManager is IHookManager, Auth {
     emit HookRemoved(hook);
   }
 
-  function _isHook(address addr) internal view override returns (bool) {
+  function _isHook(address addr) internal view returns (bool) {
     return _validationHooks().contains(addr) || _executionHooks().contains(addr);
   }
 

src/managers/OwnerManager.sol

@@ -3,7 +3,6 @@ pragma solidity ^0.8.24;
 
 import { EnumerableSet } from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
 import { SsoStorage } from "../libraries/SsoStorage.sol";
-import { Errors } from "../libraries/Errors.sol";
 import { Auth } from "../auth/Auth.sol";
 import { IOwnerManager } from "../interfaces/IOwnerManager.sol";