removing comment for changing allowance to 0

Author: vinay035

contracts/SRTToken.sol

@@ -77,10 +77,6 @@ contract StandardToken is ERC20 {
     * @param _value The amount of tokens to be spent.
     */
     function approve(address _spender, uint256 _value) returns (bool success) {
-        // To change the approve amount you first have to reduce the addresses`
-        //  allowance to zero by calling `approve(_spender, 0)` if it is not
-        //  already 0 to mitigate the race condition described here:
-        //  https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
         require(allowed[msg.sender][_spender] == 0);
         allowed[msg.sender][_spender] = _value;
         Approval(msg.sender, _spender, _value);