fix: Remove amountReceived and dataOffset from the callback verification

--- don't change below this line ---
ENG-4047 Took 20 minutes

foundry/src/CallbackVerificationDispatcher.sol

@@ -50,12 +50,7 @@ contract CallbackVerificationDispatcher {
     function _callVerifyCallback(bytes calldata data)
         internal
         view
-        returns (
-            uint256 amountOwed,
-            uint256 amountReceived,
-            address tokenOwed,
-            uint16 dataOffset
-        )
+        returns (uint256 amountOwed, address tokenOwed)
     {
         address verifier;
         bytes4 decodedSelector;
@@ -87,8 +82,7 @@ contract CallbackVerificationDispatcher {
             }
         }
 
-        (amountOwed, amountReceived, tokenOwed, dataOffset) =
-            abi.decode(result, (uint256, uint256, address, uint16));
+        (amountOwed, tokenOwed) = abi.decode(result, (uint256, address));
     }
 
     // slither-disable-next-line dead-code

foundry/src/TychoRouter.sol

@@ -87,12 +87,7 @@ contract TychoRouter is
      *  @param msgData encoded data. It must includes data for the verification.
      */
     function _executeGenericCallback(bytes calldata msgData) internal {
-        (
-            uint256 amountOwed,
-            uint256 amountReceived,
-            address tokenOwed,
-            uint16 offset // I think we actually don't need this!
-        ) = _callVerifyCallback(msgData);
+        (uint256 amountOwed, address tokenOwed) = _callVerifyCallback(msgData);
 
         IERC20(tokenOwed).safeTransfer(msg.sender, amountOwed);
     }