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diff --git a/packages/contracts/src/2.0.0/extensions/Forwarder/mixins/MWeth.sol b/packages/contracts/src/2.0.0/extensions/Forwarder/mixins/MWeth.sol
deleted file mode 100644
index 88e77be4e..000000000
--- a/packages/contracts/src/2.0.0/extensions/Forwarder/mixins/MWeth.sol
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@@ -1,41 +0,0 @@
-/*
-
- Copyright 2018 ZeroEx Intl.
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-
-*/
-
-pragma solidity 0.4.24;
-
-
-contract MWeth {
-
- /// @dev Converts message call's ETH value into WETH.
- function convertEthToWeth()
- internal;
-
- /// @dev Transfers feePercentage of WETH spent on primary orders to feeRecipient.
- /// Refunds any excess ETH to msg.sender.
- /// @param wethSoldExcludingFeeOrders Amount of WETH sold when filling primary orders.
- /// @param wethSoldForZrx Amount of WETH sold when purchasing ZRX required for primary order fees.
- /// @param feePercentage Percentage of WETH sold that will payed as fee to forwarding contract feeRecipient.
- /// @param feeRecipient Address that will receive ETH when orders are filled.
- function transferEthFeeAndRefund(
- uint256 wethSoldExcludingFeeOrders,
- uint256 wethSoldForZrx,
- uint256 feePercentage,
- address feeRecipient
- )
- internal;
-}