remove duplicated initialize from contracts (#417)

contracts/contracts/LineaRollup.sol

@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: AGPL-3.0
 pragma solidity 0.8.26;
 
-import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
 import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
 import { L1MessageService } from "./messageService/l1/L1MessageService.sol";
 import { ZkEvmV2 } from "./ZkEvmV2.sol";
@@ -14,14 +13,7 @@ import { Utils } from "./lib/Utils.sol";
  * @author ConsenSys Software Inc.
  * @custom:security-contact security-report@linea.build
  */
-contract LineaRollup is
-  Initializable,
-  AccessControlUpgradeable,
-  ZkEvmV2,
-  L1MessageService,
-  PermissionsManager,
-  ILineaRollup
-{
+contract LineaRollup is AccessControlUpgradeable, ZkEvmV2, L1MessageService, PermissionsManager, ILineaRollup {
   using Utils for *;
 
   /// @notice This is the ABI version and not the reinitialize version.

contracts/contracts/ZkEvmV2.sol

@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: AGPL-3.0
 pragma solidity 0.8.26;
 
-import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
 import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
 import { L1MessageServiceV1 } from "./messageService/l1/v1/L1MessageServiceV1.sol";
 import { IZkEvmV2 } from "./interfaces/l1/IZkEvmV2.sol";
@@ -11,7 +10,7 @@ import { IPlonkVerifier } from "./interfaces/l1/IPlonkVerifier.sol";
  * @author ConsenSys Software Inc.
  * @custom:security-contact security-report@linea.build
  */
-abstract contract ZkEvmV2 is Initializable, AccessControlUpgradeable, L1MessageServiceV1, IZkEvmV2 {
+abstract contract ZkEvmV2 is AccessControlUpgradeable, L1MessageServiceV1, IZkEvmV2 {
   uint256 internal constant MODULO_R = 21888242871839275222246405745257275088548364400416034343698204186575808495617;
   bytes32 public constant OPERATOR_ROLE = keccak256("OPERATOR_ROLE");
 

contracts/contracts/lib/PauseManager.sol

@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: AGPL-3.0
 pragma solidity >=0.8.19 <=0.8.26;
 
-import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
 import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
 import { IPauseManager } from "../interfaces/IPauseManager.sol";
 
@@ -10,7 +9,7 @@ import { IPauseManager } from "../interfaces/IPauseManager.sol";
  * @author ConsenSys Software Inc.
  * @custom:security-contact security-report@linea.build
  */
-abstract contract PauseManager is Initializable, IPauseManager, AccessControlUpgradeable {
+abstract contract PauseManager is IPauseManager, AccessControlUpgradeable {
   /// @notice This is used to pause all pausable functions.
   bytes32 public constant PAUSE_ALL_ROLE = keccak256("PAUSE_ALL_ROLE");
 

contracts/contracts/lib/PermissionsManager.sol

@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: AGPL-3.0
 pragma solidity >=0.8.19 <=0.8.26;
 
-import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
 import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
 import { IGenericErrors } from "../interfaces/IGenericErrors.sol";
 import { IPermissionsManager } from "../interfaces/IPermissionsManager.sol";
@@ -11,7 +10,7 @@ import { IPermissionsManager } from "../interfaces/IPermissionsManager.sol";
  * @author ConsenSys Software Inc.
  * @custom:security-contact security-report@linea.build
  */
-abstract contract PermissionsManager is Initializable, AccessControlUpgradeable, IPermissionsManager, IGenericErrors {
+abstract contract PermissionsManager is AccessControlUpgradeable, IPermissionsManager, IGenericErrors {
   /**
    * @notice Sets permissions for a list of addresses and their roles.
    * @param _roleAddresses The list of addresses and roles to assign permissions to.

contracts/contracts/messageService/l1/v1/L1MessageServiceV1.sol

@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: AGPL-3.0
 pragma solidity 0.8.26;
 
-import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
 import { LineaRollupPauseManager } from "../../../lib/LineaRollupPauseManager.sol";
 import { RateLimiter } from "../../lib/RateLimiter.sol";
 import { L1MessageManagerV1 } from "./L1MessageManagerV1.sol";
@@ -16,7 +15,6 @@ import { MessageHashing } from "../../lib/MessageHashing.sol";
  * @custom:security-contact security-report@linea.build
  */
 abstract contract L1MessageServiceV1 is
-  Initializable,
   RateLimiter,
   L1MessageManagerV1,
   TransientStorageReentrancyGuardUpgradeable,

contracts/contracts/messageService/l2/v1/L2MessageServiceV1.sol

@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: AGPL-3.0
 pragma solidity 0.8.19;
 
-import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
 import { ReentrancyGuardUpgradeable } from "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
 import { IMessageService } from "../../../interfaces/IMessageService.sol";
 import { IL2MessageServiceV1 } from "../../../interfaces/l2/IL2MessageServiceV1.sol";
@@ -16,7 +15,6 @@ import { MessageHashing } from "../../lib/MessageHashing.sol";
  * @custom:security-contact security-report@linea.build
  */
 abstract contract L2MessageServiceV1 is
-  Initializable,
   RateLimiter,
   L2MessageManagerV1,
   ReentrancyGuardUpgradeable,

contracts/contracts/messageService/lib/RateLimiter.sol

@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: AGPL-3.0
 pragma solidity >=0.8.19 <=0.8.26;
 
-import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
 import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
 import { IRateLimiter } from "../../interfaces/IRateLimiter.sol";
 
@@ -11,7 +10,7 @@ import { IRateLimiter } from "../../interfaces/IRateLimiter.sol";
  * @notice You can use this control numeric limits over a period using timestamp.
  * @custom:security-contact security-report@linea.build
  */
-contract RateLimiter is Initializable, IRateLimiter, AccessControlUpgradeable {
+contract RateLimiter is IRateLimiter, AccessControlUpgradeable {
   bytes32 public constant RATE_LIMIT_SETTER_ROLE = keccak256("RATE_LIMIT_SETTER_ROLE");
   bytes32 public constant USED_RATE_LIMIT_RESETTER_ROLE = keccak256("USED_RATE_LIMIT_RESETTER_ROLE");
 

contracts/contracts/tokenBridge/TokenBridge.sol

@@ -11,8 +11,6 @@ import { SafeERC20Upgradeable } from "@openzeppelin/contracts-upgradeable/token/
 import { BeaconProxy } from "@openzeppelin/contracts/proxy/beacon/BeaconProxy.sol";
 import { ReentrancyGuardUpgradeable } from "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
 
-import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
-
 import { BridgedToken } from "./BridgedToken.sol";
 import { MessageServiceBase } from "../messageService/MessageServiceBase.sol";
 
@@ -30,7 +28,6 @@ import { Utils } from "../lib/Utils.sol";
  */
 contract TokenBridge is
   ITokenBridge,
-  Initializable,
   ReentrancyGuardUpgradeable,
   AccessControlUpgradeable,
   MessageServiceBase,