Fixed a trivial build failure caused by a change to the client library

using com::seagate::kinetic::ValueFactory;

using kinetic::KineticConnection;

using kinetic::KineticConnectionFactory;

using kinetic::Status;

using kinetic::KineticRecord;

using kinetic::DeleteCallbackInterface;

using kinetic::NonblockingError;

using kinetic::SimpleCallbackInterface;

using kinetic::Status;

using palominolabs::protobufutil::MessageStreamFactory;

class DeleteCallback : public DeleteCallbackInterface {

class DeleteCallback : public SimpleCallbackInterface {

public:

    DeleteCallback(int* remaining) : remaining_(remaining) {};

    void Success() {