fix: unused vars

contracts/src/v0.8/functions/v1_3_0_zksync/FunctionsBilling.sol

@@ -3,7 +3,7 @@ pragma solidity ^0.8.19;
 
 import {IFunctionsSubscriptions} from "../v1_0_0/interfaces/IFunctionsSubscriptions.sol";
 import {AggregatorV3Interface} from "../../shared/interfaces/AggregatorV3Interface.sol";
-import {IFunctionsBilling, FunctionsBillingConfig} from "../v1_0_0/interfaces/IFunctionsBilling.sol";
+import {IFunctionsBilling, FunctionsBillingConfig} from "../v1_3_0/interfaces/IFunctionsBilling.sol";
 
 import {Routable} from "../v1_0_0/Routable.sol";
 import {FunctionsResponse} from "../v1_0_0/libraries/FunctionsResponse.sol";
@@ -278,7 +278,6 @@ abstract contract FunctionsBilling is Routable, IFunctionsBilling {
   /// @param requestId identifier for the request that was generated by the Registry in the beginBilling commitment
   /// @param response response data from DON consensus
   /// @param err error from DON consensus
-  /// @param reportBatchSize the number of fulfillments in the transmitter's report
   /// @return result fulfillment result
   /// @dev Only callable by a node that has been approved on the Coordinator
   /// @dev simulated offchain to determine if sufficient balance is present to fulfill the request
@@ -287,8 +286,7 @@ abstract contract FunctionsBilling is Routable, IFunctionsBilling {
     bytes memory response,
     bytes memory err,
     bytes memory onchainMetadata,
-    bytes memory /* offchainMetadata TODO: use in getDonFee() for dynamic billing */,
-    uint8 reportBatchSize
+    bytes memory /* offchainMetadata TODO: use in getDonFee() for dynamic billing */
   ) internal returns (FunctionsResponse.FulfillResult) {
     FunctionsResponse.Commitment memory commitment = abi.decode(onchainMetadata, (FunctionsResponse.Commitment));
 
@@ -341,7 +339,7 @@ abstract contract FunctionsBilling is Routable, IFunctionsBilling {
       emit RequestBilled({
         requestId: requestId,
         juelsPerGas: juelsPerGas,
-        l1FeeShareWei: l1FeeShareWei,
+        l1FeeShareWei: 0,
         callbackCostJuels: callbackCostJuels,
         donFeeJuels: commitment.donFee,
         // The following two lines are because of OperationFee being used in the Offchain Commitment

contracts/src/v0.8/functions/v1_3_0_zksync/FunctionsCoordinator.sol

@@ -199,8 +199,7 @@ contract FunctionsCoordinator is OCR2Base, IFunctionsCoordinator, FunctionsBilli
           decodedReport.results[i],
           decodedReport.errors[i],
           decodedReport.onchainMetadata[i],
-          decodedReport.offchainMetadata[i],
-          uint8(numberOfFulfillments) // will not exceed "MaxRequestBatchSize" on the Job's ReportingPluginConfig
+          decodedReport.offchainMetadata[i]
         )
       );