Feature/ws send confirmation removal (#280)

* Removed send confirmation

* Updated websocket examples

clients/native/examples/python-examples/websocket/filesend.py

@@ -26,8 +26,6 @@ async def send_file():
 
         print("sending content of 'dummy_file' over the mix network...")
         await websocket.send(bin_payload)
-        msg_send_confirmation = json.loads(await websocket.recv())
-        assert msg_send_confirmation["type"], "send"
 
         print("waiting to receive the 'dummy_file' from the mix network...")
         received_data = await websocket.recv()

clients/native/examples/python-examples/websocket/textsend.py

@@ -24,8 +24,6 @@ async def send_text():
 
         print("sending '{}' over the mix network...".format(message))
         await websocket.send(text_send)
-        msg_send_confirmation = json.loads(await websocket.recv())
-        assert msg_send_confirmation["type"], "send"
 
         print("waiting to receive a message from the mix network...")
         received_message = await websocket.recv()