simplify dvm

contracts/DODOVendingMachine/intf/IDVM.sol

@@ -10,14 +10,11 @@ pragma experimental ABIEncoderV2;
 
 interface IDVM {
     function init(
-        address owner,
         address maintainer,
         address baseTokenAddress,
         address quoteTokenAddress,
-        address lpFeeRateModel,
+        uint256 lpFeeRate,
         address mtFeeRateModel,
-        address tradePermissionManager,
-        address gasPriceSource,
         uint256 i,
         uint256 k
     ) external;
@@ -26,8 +23,6 @@ interface IDVM {
 
     function _QUOTE_TOKEN_() external returns (address);
 
-    function _LP_FEE_RATE_MODEL_() external returns (address);
-
     function _MT_FEE_RATE_MODEL_() external returns (address);
 
     function getVaultReserve() external returns (uint256 baseReserve, uint256 quoteReserve);
@@ -38,23 +33,4 @@ interface IDVM {
 
     function buyShares(address to) external returns (uint256);
 
-    //=========== admin ==========
-    function setLpFeeRateModel(address newLpFeeRateModel) external;
-
-    function setLpFeeRateValue(uint256 newLpFeeRate) external;
-
-    function setMtFeeRateModel(address newMtFeeRateModel) external;
-    
-    function setMtFeeRateValue(uint256 newMtFeeRate) external;
-
-    function setTradePermissionManager(address newTradePermissionManager) external;
-
-    function setMaintainer(address newMaintainer) external;
-
-    function setGasPriceSource(address newGasPriceLimitSource) external;
-
-    function setBuy(bool open) external;
-
-    function setSell(bool open) external;
-    //==============================
 }

contracts/DODOVendingMachine/intf/IDVMAdmin.sol

@@ -1,13 +0,0 @@
-/*
-
-    Copyright 2020 DODO ZOO.
-    SPDX-License-Identifier: Apache-2.0
-
-*/
-
-pragma solidity 0.6.9;
-pragma experimental ABIEncoderV2;
-
-interface IDVMAdmin {
-    function init(address owner, address _dvm) external;
-}