diff --git a/hbmqtt/client.py b/hbmqtt/client.py
index 46c1c2c..12e9c29 100644
--- a/hbmqtt/client.py
+++ b/hbmqtt/client.py
@@ -196,14 +196,6 @@ class MQTTClient:
             self.logger.warn("unsubscribe while not connected to broker, message may be lost")
         yield from self._handler.mqtt_unsubscribe(topics, self.session.next_packet_id)
 
-    @asyncio.coroutine
-    def deliver_message(self):
-        return (yield from self._handler.mqtt_deliver_next_message())
-
-    @asyncio.coroutine
-    def acknowledge_delivery(self, packet_id):
-        yield from self._handler.mqtt_acknowledge_delivery(packet_id)
-
     @asyncio.coroutine
     def _connect_coro(self):
         sc = None