style: drop useless object inheritance

gns3server/db/tasks.py

@@ -252,7 +252,7 @@ class EventHandler(PatternMatchingEventHandler):
         self._loop.call_soon_threadsafe(self._queue.put_nowait, event)
 
 
-class EventIterator(object):
+class EventIterator:
     """
     Watchdog Event iterator.
     """

tests/compute/docker/test_docker_vm.py

@@ -2051,7 +2051,7 @@ async def test_delete_reports_root_files_when_reclaim_fails(vm):
 @pytest.mark.asyncio
 async def test_read_console_output_with_binary_mode(vm):
 
-    class InputStreamMock(object):
+    class InputStreamMock:
         def __init__(self):
             self.sent = False