1 files changed, 0 insertions, 87 deletions
diff --git a/packages/contracts/src/2.0.0/utils/SafeMath/SafeMath.sol b/packages/contracts/src/2.0.0/utils/SafeMath/SafeMath.sol
deleted file mode 100644
index 2855edb9d..000000000
--- a/packages/contracts/src/2.0.0/utils/SafeMath/SafeMath.sol
+++ /dev/null
@@ -1,87 +0,0 @@
-pragma solidity 0.4.24;
-
-
-contract SafeMath {
-
-    function safeMul(uint256 a, uint256 b)
-        internal
-        pure
-        returns (uint256)
-    {
-        if (a == 0) {
-            return 0;
-        }
-        uint256 c = a * b;
-        require(
-            c / a == b,
-            "UINT256_OVERFLOW"
-        );
-        return c;
-    }
-
-    function safeDiv(uint256 a, uint256 b)
-        internal
-        pure
-        returns (uint256)
-    {
-        uint256 c = a / b;
-        return c;
-    }
-
-    function safeSub(uint256 a, uint256 b)
-        internal
-        pure
-        returns (uint256)
-    {
-        require(
-            b <= a,
-            "UINT256_UNDERFLOW"
-        );
-        return a - b;
-    }
-
-    function safeAdd(uint256 a, uint256 b)
-        internal
-        pure
-        returns (uint256)
-    {
-        uint256 c = a + b;
-        require(
-            c >= a,
-            "UINT256_OVERFLOW"
-        );
-        return c;
-    }
-
-    function max64(uint64 a, uint64 b)
-        internal
-        pure
-        returns (uint256)
-    {
-        return a >= b ? a : b;
-    }
-
-    function min64(uint64 a, uint64 b)
-        internal
-        pure
-        returns (uint256)
-    {
-        return a < b ? a : b;
-    }
-
-    function max256(uint256 a, uint256 b)
-        internal
-        pure
-        returns (uint256)
-    {
-        return a >= b ? a : b;
-    }
-
-    function min256(uint256 a, uint256 b)
-        internal
-        pure
-        returns (uint256)
-    {
-        return a < b ? a : b;
-    }
-}