Unused imports

[code423n4]

Handle

robee

Vulnerability details

In the following files, there are contract imports that aren't used.
Import of unnecessary files costs deployment gas (and is a bad coding practice that is important to ignore).
The following is a full list of all unused imports, we went through the whole code to find it :) :

    AuctionBurnReserveSkew.sol, line 4, import "@openzeppelin/contracts/access/AccessControl.sol";
    AuctionParticipant.sol, line 2, import "@openzeppelin/contracts/math/SafeMath.sol";
    AuctionParticipant.sol, line 3, import "@openzeppelin/upgrades/contracts/Initializable.sol";
    AuctionPool.sol, line 9, import "./interfaces/IAuction.sol";
    AuctionPool.sol, line 10, import "./interfaces/IBurnMintableERC20.sol";
    AuctionPool.sol, line 11, import "./interfaces/IDexHandler.sol";
    Bonding.sol, line 2, import "@openzeppelin/contracts/math/SafeMath.sol";
    ERC20VestedMine.sol, line 2, import "@openzeppelin/contracts/math/SafeMath.sol";
    ImpliedCollateralService.sol, line 12, import "./interfaces/IRewardThrottle.sol";
    LiquidityExtension.sol, line 2, import "@openzeppelin/contracts/math/SafeMath.sol";
    LiquidityExtension.sol, line 3, import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
    MaltDataLab.sol, line 7, import "./interfaces/IStabilizerNode.sol";
    MaltDataLab.sol, line 9, import "./interfaces/IDAO.sol";
    MiningService.sol, line 2, import "@openzeppelin/contracts/math/SafeMath.sol";
    MiningService.sol, line 3, import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
    PoolTransferVerification.sol, line 2, import "@openzeppelin/contracts/math/SafeMath.sol";
    PoolTransferVerification.sol, line 6, import "./Permissions.sol";
    RewardDistributor.sol, line 2, import "@openzeppelin/contracts/math/SafeMath.sol";
    RewardDistributor.sol, line 11, import "hardhat/console.sol";
    RewardOverflowPool.sol, line 2, import "@openzeppelin/contracts/math/SafeMath.sol";
    RewardThrottle.sol, line 2, import "@openzeppelin/contracts/math/SafeMath.sol";
    RewardThrottle.sol, line 13, import "hardhat/console.sol";
    SwingTrader.sol, line 8, import "./interfaces/IAuction.sol";
    TransferService.sol, line 4, import "./interfaces/IMaltDataLab.sol";

[GalloDaSballo]

Finding is valid, unused imports do not save gas though, changing to non-critical