remove unused code

Author: bdraco

onvif/zeep_aiohttp.py

@@ -54,7 +54,7 @@ def __init__(
         self.proxy = proxy
         self._close_session = False  # Never close a provided session
         # Extract timeout from session
-        self._client_timeout = session._timeout
+        self._client_timeout = session.timeout
 
     async def __aenter__(self) -> AIOHTTPTransport:
         """Enter async context."""

tests/test_zeep_transport.py

@@ -15,12 +15,10 @@ def create_mock_session(timeout=None):
     mock_session = Mock(spec=aiohttp.ClientSession)
     if timeout:
         mock_session.timeout = timeout
-        mock_session._timeout = timeout  # Some code accesses private attribute
     else:
         # Create a default timeout object
         default_timeout = Mock(total=300, sock_read=None)
         mock_session.timeout = default_timeout
-        mock_session._timeout = default_timeout  # Some code accesses private attribute
     return mock_session