Drop asynctest (#44746)

tests/components/hue/test_init.py

@@ -1,5 +1,5 @@
 """Test Hue setup process."""
-from unittest.mock import Mock
+from unittest.mock import AsyncMock, Mock, patch
 
 import pytest
 
@@ -7,7 +7,6 @@ from homeassistant import config_entries
 from homeassistant.components import hue
 from homeassistant.setup import async_setup_component
 
-from tests.async_mock import AsyncMock, patch
 from tests.common import MockConfigEntry