Remove unnecessary declaration of abicoder v2

As per Solidity 0.8.0, ABI coder v2 is activated by default and as such it does not need to be specified in the code. Disregard this commit if wanting to be explicit in using ABI coder v2  instead of experimental ABIEncoderV2 or abicoder V1.

src/interfaces/uniswap/ISwapRouter.sol

@@ -1,6 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 pragma solidity 0.8.21;
-pragma abicoder v2;
 
 import { IUniswapV3SwapCallback } from "src/interfaces/uniswap/IUniswapV3SwapCallback.sol";
 

src/services/SwapService.sol

@@ -1,8 +1,6 @@
 // SPDX-License-Identifier: MIT
 pragma solidity 0.8.21;
 
-pragma abicoder v2;
-
 // Local imports
 import { TransferHelper } from "src/dependencies/uniswap/TransferHelper.sol";
 import { ISwapRouter } from "src/interfaces/uniswap/ISwapRouter.sol";