Update Amis.sol

Author: amisolution

contracts/Amis.sol

@@ -1,70 +1,7 @@
-// # https://remix.ethereum.org/#version=soljson-v0.5.24+commit.e67f0147.js&optimize=true&gist=7f2a15679aee59fba912aa929f70df1d
+// # https://remix.ethereum.org/#version=soljson-v0.5.24+commit.e67f0147.js&optimize=true&gist=6ba2843f228efec36624338245bd09dd
 // 
 pragma solidity ^0.5.24;
 
-contract ERC223 {
-  uint public totalSupply;
-  function balanceOf(address who) public view returns (uint);
-  
-  function name() public view returns (string _name);
-  function symbol() public view returns (string _symbol);
-  function decimals() public view returns (uint8 _decimals);
-  function totalSupply() public view returns (uint256 _supply);
-
-  function transfer(address to, uint value) public returns (bool ok);
-  function transfer(address to, uint value, bytes data) public returns (bool ok);
-  function transfer(address to, uint value, bytes data, string custom_fallback) public returns (bool ok);
-  
-  event Transfer(address indexed from, address indexed to, uint value, bytes indexed data);
-  
-}
-
-
-library SafeMath {
-
-    function add(uint256 a, uint256 b) internal pure returns (uint256) {
-        uint256 c = a + b;
-        require(c >= a, "SafeMath: addition overflow");
-
-        return c;
-    }
-
-    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
-        require(b <= a, "SafeMath: subtraction overflow");
-        uint256 c = a - b;
-
-        return c;
-    }
-
-    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
-        // Gas optimization: this is cheaper than requiring '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 0;
-        }
-
-        uint256 c = a * b;
-        require(c / a == b, "SafeMath: multiplication overflow");
-
-        return c;
-    }
-
-    function div(uint256 a, uint256 b) internal pure returns (uint256) {
-        // Solidity only automatically asserts when dividing by 0
-        require(b > 0, "SafeMath: division by zero");
-        uint256 c = a / b;
-        // assert(a == b * c + a % b); // There is no case in which this doesn't hold
-
-        return c;
-    }
-
-    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
-        require(b != 0, "SafeMath: modulo by zero");
-        return a % b;
-    }
-}
-
 // change contract name to your contract's name
 // i.e. "contract AMIS is ERC223Token"
 contract Amis is ERC223Token {