From b390f2181ad85ea36e51574e449db48d6e59475f Mon Sep 17 00:00:00 2001
From: satyam <satyam@secureblocks.io>
Date: Mon, 27 May 2019 06:21:02 +0530
Subject: [PATCH 1/2] cleanup

---
 contracts/libraries/TokenLib.sol | 1 -
 1 file changed, 1 deletion(-)

diff --git a/contracts/libraries/TokenLib.sol b/contracts/libraries/TokenLib.sol
index e0f318fa9..b4e219d64 100644
--- a/contracts/libraries/TokenLib.sol
+++ b/contracts/libraries/TokenLib.sol
@@ -7,7 +7,6 @@ import "../tokens/SecurityTokenStorage.sol";
 import "../interfaces/ITransferManager.sol";
 import "openzeppelin-solidity/contracts/math/SafeMath.sol";
 import "../modules/PermissionManager/IPermissionManager.sol";
-import "./KindMath.sol";
 
 library TokenLib {
 

From 1fc24463c7198faa8b4c13b62e131f597bcd8280 Mon Sep 17 00:00:00 2001
From: satyam <satyam@secureblocks.io>
Date: Wed, 29 May 2019 18:41:30 +0530
Subject: [PATCH 2/2] remove the KindMath

---
 contracts/libraries/KindMath.sol | 48 --------------------------------
 1 file changed, 48 deletions(-)
 delete mode 100644 contracts/libraries/KindMath.sol

diff --git a/contracts/libraries/KindMath.sol b/contracts/libraries/KindMath.sol
deleted file mode 100644
index e9de30c65..000000000
--- a/contracts/libraries/KindMath.sol
+++ /dev/null
@@ -1,48 +0,0 @@
-pragma solidity ^0.5.0;
-
-/**
- * @title KindMath
- * @notice ref. https://github.com/OpenZeppelin/openzeppelin-solidity/blob/master/contracts/math/SafeMath.sol
- * @dev Math operations with safety checks that returns boolean
- */
-library KindMath {
-
-    /**
-     * @dev Multiplies two numbers, return false on overflow.
-     */
-    function checkMul(uint256 a, uint256 b) internal pure returns (bool) {
-        // Gas optimization: this is cheaper than requireing 'a' not being zero, but the
-        // benefit is lost if 'b' is also tested.
-        // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
-        if (a == 0) {
-            return true;
-        }
-
-        uint256 c = a * b;
-        if (c / a == b)
-            return true;
-        else 
-            return false;
-    }
-
-    /**
-    * @dev Subtracts two numbers, return false on overflow (i.e. if subtrahend is greater than minuend).
-    */
-    function checkSub(uint256 a, uint256 b) internal pure returns (bool) {
-        if (b <= a)
-            return true;
-        else
-            return false;
-    }
-
-    /**
-    * @dev Adds two numbers, return false on overflow.
-    */
-    function checkAdd(uint256 a, uint256 b) internal pure returns (bool) {
-        uint256 c = a + b;
-        if (c < a)
-            return false;
-        else
-            return true;
-    }
-}