Remove warning for devices also detectable as other device.

Our config flow can now handle selecting between duplicates, so there
is no need to warn.
Now that we have Simple Switch as a device, almost everything was
triggering the warning.

tests/test_device_config.py

@@ -127,9 +127,6 @@ class TestDeviceConfig(unittest.TestCase):
             q = cfg.match_quality(payload)
             if q > best_q:
                 best_q = q
-            warn(
-                f"{legacy_type} also detectable as {cfg.legacy_type} with quality {q}%"
-            )
 
         self.assertGreater(quality, best_q)