Remove unused imports

contracts/flashloan/base/FlashLoanReceiverBase.sol

@@ -6,7 +6,6 @@ import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
 import {IFlashLoanReceiver} from '../interfaces/IFlashLoanReceiver.sol';
 import {ILendingPoolAddressesProvider} from '../../interfaces/ILendingPoolAddressesProvider.sol';
 import {SafeERC20} from '@openzeppelin/contracts/token/ERC20/SafeERC20.sol';
-import '@nomiclabs/buidler/console.sol';
 
 abstract contract FlashLoanReceiverBase is IFlashLoanReceiver {
   using SafeERC20 for IERC20;

contracts/interfaces/ILendingPool.sol

@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: agpl-3.0
 pragma solidity ^0.6.8;
 
-import {LendingPoolAddressesProvider} from '../configuration/LendingPoolAddressesProvider.sol';
 import {ReserveConfiguration} from '../libraries/configuration/ReserveConfiguration.sol';
 pragma experimental ABIEncoderV2;
 

contracts/lendingpool/LendingPoolCollateralManager.sol

@@ -9,7 +9,6 @@ import {
 import {IAToken} from '../tokenization/interfaces/IAToken.sol';
 import {IStableDebtToken} from '../tokenization/interfaces/IStableDebtToken.sol';
 import {IVariableDebtToken} from '../tokenization/interfaces/IVariableDebtToken.sol';
-import {DebtTokenBase} from '../tokenization/base/DebtTokenBase.sol';
 import {IPriceOracleGetter} from '../interfaces/IPriceOracleGetter.sol';
 import {GenericLogic} from '../libraries/logic/GenericLogic.sol';
 import {ReserveLogic} from '../libraries/logic/ReserveLogic.sol';

contracts/libraries/configuration/ReserveConfiguration.sol

@@ -1,12 +1,6 @@
 // SPDX-License-Identifier: agpl-3.0
 pragma solidity ^0.6.8;
 
-import {SafeMath} from '@openzeppelin/contracts/math/SafeMath.sol';
-import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
-import {ReserveLogic} from '../logic/ReserveLogic.sol';
-import {WadRayMath} from '../math/WadRayMath.sol';
-import {IPriceOracleGetter} from '../../interfaces/IPriceOracleGetter.sol';
-
 /**
  * @title ReserveConfiguration library
  * @author Aave

contracts/libraries/configuration/UserConfiguration.sol

@@ -1,19 +1,13 @@
 // SPDX-License-Identifier: agpl-3.0
 pragma solidity ^0.6.8;
 
-import {SafeMath} from '@openzeppelin/contracts/math/SafeMath.sol';
-import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
-import {WadRayMath} from '../math/WadRayMath.sol';
-import {IPriceOracleGetter} from '../../interfaces/IPriceOracleGetter.sol';
-
 /**
  * @title UserConfiguration library
  * @author Aave
  * @notice Implements the bitmap logic to handle the user configuration
  */
 library UserConfiguration {
-  uint256
+  uint256 internal constant BORROWING_MASK = 0x5555555555555555555555555555555555555555555555555555555555555555;
-    internal constant BORROWING_MASK = 0x5555555555555555555555555555555555555555555555555555555555555555;
 
   struct Map {
     uint256 data;

contracts/libraries/logic/ReserveLogic.sol

@@ -4,7 +4,6 @@ pragma solidity ^0.6.8;
 import {SafeMath} from '@openzeppelin/contracts/math/SafeMath.sol';
 import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
 import {MathUtils} from '../math/MathUtils.sol';
-import {IPriceOracleGetter} from '../../interfaces/IPriceOracleGetter.sol';
 import {SafeERC20} from '@openzeppelin/contracts/token/ERC20/SafeERC20.sol';
 import {IAToken} from '../../tokenization/interfaces/IAToken.sol';
 import {IStableDebtToken} from '../../tokenization/interfaces/IStableDebtToken.sol';

contracts/libraries/logic/ValidationLogic.sol

@@ -11,7 +11,6 @@ import {PercentageMath} from '../math/PercentageMath.sol';
 import {SafeERC20} from '@openzeppelin/contracts/token/ERC20/SafeERC20.sol';
 import {ReserveConfiguration} from '../configuration/ReserveConfiguration.sol';
 import {UserConfiguration} from '../configuration/UserConfiguration.sol';
-import {IPriceOracleGetter} from '../../interfaces/IPriceOracleGetter.sol';
 import {Errors} from '../helpers/Errors.sol';
 import {Helpers} from '../helpers/Helpers.sol';
 

contracts/mocks/upgradeability/MockStableDebtToken.sol

@@ -2,7 +2,6 @@
 pragma solidity ^0.6.8;
 
 import {StableDebtToken} from '../../tokenization/StableDebtToken.sol';
-import {LendingPool} from '../../lendingpool/LendingPool.sol';
 
 contract MockStableDebtToken is StableDebtToken {
   constructor(

contracts/mocks/upgradeability/MockVariableDebtToken.sol

@@ -2,7 +2,6 @@
 pragma solidity ^0.6.8;
 
 import {VariableDebtToken} from '../../tokenization/VariableDebtToken.sol';
-import {LendingPool} from '../../lendingpool/LendingPool.sol';
 
 contract MockVariableDebtToken is VariableDebtToken {
   constructor(

contracts/tokenization/StableDebtToken.sol

@@ -1,9 +1,6 @@
 // SPDX-License-Identifier: agpl-3.0
 pragma solidity ^0.6.8;
 
-import {Context} from '@openzeppelin/contracts/GSN/Context.sol';
-import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
-import {SafeMath} from '@openzeppelin/contracts/math/SafeMath.sol';
 import {DebtTokenBase} from './base/DebtTokenBase.sol';
 import {MathUtils} from '../libraries/math/MathUtils.sol';
 import {WadRayMath} from '../libraries/math/WadRayMath.sol';

contracts/tokenization/VariableDebtToken.sol

@@ -1,9 +1,6 @@
 // SPDX-License-Identifier: agpl-3.0
 pragma solidity ^0.6.8;
 
-import {Context} from '@openzeppelin/contracts/GSN/Context.sol';
-import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
-import {SafeMath} from '@openzeppelin/contracts/math/SafeMath.sol';
 import {DebtTokenBase} from './base/DebtTokenBase.sol';
 import {WadRayMath} from '../libraries/math/WadRayMath.sol';
 import {IVariableDebtToken} from './interfaces/IVariableDebtToken.sol';

contracts/tokenization/base/DebtTokenBase.sol

@@ -1,9 +1,6 @@
 // SPDX-License-Identifier: agpl-3.0
 pragma solidity ^0.6.8;
 
-import {Context} from '@openzeppelin/contracts/GSN/Context.sol';
-import {SafeMath} from '@openzeppelin/contracts/math/SafeMath.sol';
-import {ILendingPoolAddressesProvider} from '../../interfaces/ILendingPoolAddressesProvider.sol';
 import {ILendingPool} from '../../interfaces/ILendingPool.sol';
 import {
   VersionedInitializable