chore: Refactor test by removing redundant assertion

Removed redundant assertion for home_map_info length.

Author: allenporter

tests/devices/traits/v1/test_home.py

@@ -499,9 +499,6 @@ async def test_discover_home_device_busy_cleaning(
     await home_trait.refresh()
 
     # Verify we now have all of the information populated from discovery
-    assert home_trait.home_map_info is not None
-    assert len(home_trait.home_map_info) == 2
-
     assert home_trait.home_map_info is not None
     assert home_trait.home_map_info.keys() == {0, 123}
     assert home_trait.home_map_content is not None