delete contracts and tests not yet in zos

contracts/payment/PullPayment.sol

@@ -1,43 +0,0 @@
-pragma solidity ^0.4.21;
-
-
-import "../math/SafeMath.sol";
-
-
-/**
- * @title PullPayment
- * @dev Base contract supporting async send for pull payments. Inherit from this
- * contract and use asyncSend instead of send or transfer.
- */
-contract PullPayment {
-  using SafeMath for uint256;
-
-  mapping(address => uint256) public payments;
-  uint256 public totalPayments;
-
-  /**
-  * @dev Withdraw accumulated balance, called by payee.
-  */
-  function withdrawPayments() public {
-    address payee = msg.sender;
-    uint256 payment = payments[payee];
-
-    require(payment != 0);
-    require(address(this).balance >= payment);
-
-    totalPayments = totalPayments.sub(payment);
-    payments[payee] = 0;
-
-    payee.transfer(payment);
-  }
-
-  /**
-  * @dev Called by the payer to store the sent amount as credit to be pulled.
-  * @param dest The destination address of the funds.
-  * @param amount The amount to transfer.
-  */
-  function asyncSend(address dest, uint256 amount) internal {
-    payments[dest] = payments[dest].add(amount);
-    totalPayments = totalPayments.add(amount);
-  }
-}

contracts/payment/SplitPayment.sol

@@ -1,71 +0,0 @@
-pragma solidity ^0.4.21;
-
-import "../math/SafeMath.sol";
-
-
-/**
- * @title SplitPayment
- * @dev Base contract that supports multiple payees claiming funds sent to this contract
- * according to the proportion they own.
- */
-contract SplitPayment {
-  using SafeMath for uint256;
-
-  uint256 public totalShares = 0;
-  uint256 public totalReleased = 0;
-
-  mapping(address => uint256) public shares;
-  mapping(address => uint256) public released;
-  address[] public payees;
-
-  /**
-   * @dev Constructor
-   */
-  function SplitPayment(address[] _payees, uint256[] _shares) public payable {
-    require(_payees.length == _shares.length);
-
-    for (uint256 i = 0; i < _payees.length; i++) {
-      addPayee(_payees[i], _shares[i]);
-    }
-  }
-
-  /**
-   * @dev payable fallback
-   */
-  function () public payable {}
-
-  /**
-   * @dev Claim your share of the balance.
-   */
-  function claim() public {
-    address payee = msg.sender;
-
-    require(shares[payee] > 0);
-
-    uint256 totalReceived = address(this).balance.add(totalReleased);
-    uint256 payment = totalReceived.mul(shares[payee]).div(totalShares).sub(released[payee]);
-
-    require(payment != 0);
-    require(address(this).balance >= payment);
-
-    released[payee] = released[payee].add(payment);
-    totalReleased = totalReleased.add(payment);
-
-    payee.transfer(payment);
-  }
-
-  /**
-   * @dev Add a new payee to the contract.
-   * @param _payee The address of the payee to add.
-   * @param _shares The number of shares owned by the payee.
-   */
-  function addPayee(address _payee, uint256 _shares) internal {
-    require(_payee != address(0));
-    require(_shares > 0);
-    require(shares[_payee] == 0);
-
-    payees.push(_payee);
-    shares[_payee] = _shares;
-    totalShares = totalShares.add(_shares);
-  }
-}