Revert "interfaces: test interface attributes (#29297)"

This reverts commit 6a678cde6c.

selfdrive/car/tests/test_car_interfaces.py

@@ -11,7 +11,6 @@ from common.realtime import DT_CTRL
 from selfdrive.car import gen_empty_fingerprint
 from selfdrive.car.car_helpers import interfaces
 from selfdrive.car.fingerprints import all_known_cars
-from selfdrive.car.interfaces import get_interface_attr
 from selfdrive.test.fuzzy_generation import DrawType, FuzzyGenerator
 
 
@@ -110,31 +109,5 @@ class TestCarInterfaces(unittest.TestCase):
        hasattr(radar_interface, '_update') and hasattr(radar_interface, 'trigger_msg'):
       radar_interface._update([radar_interface.trigger_msg])
 
-  def test_interface_attrs(self):
-    """Asserts basic behavior of interface attribute getter"""
-    num_brands = len(get_interface_attr('CAR'))
-    self.assertGreaterEqual(num_brands, 13)
-
-    # Should return value for all brands when not combining, even if attribute doesn't exist
-    ret = get_interface_attr('FAKE_ATTR')
-    self.assertEqual(len(ret), num_brands)
-
-    # Make sure we can combine dicts
-    ret = get_interface_attr('DBC', combine_brands=True)
-    self.assertGreaterEqual(len(ret), 170)
-
-    # We don't support combining non-dicts
-    ret = get_interface_attr('CAR', combine_brands=True)
-    self.assertEqual(len(ret), 0)
-
-    # If brand has None value, it shouldn't return when ignore_none=True is specified
-    none_brands = {b for b, v in get_interface_attr('FINGERPRINTS').items() if v is None}
-    self.assertGreaterEqual(len(none_brands), 1)
-
-    ret = get_interface_attr('FINGERPRINTS', ignore_none=True)
-    none_brands_in_ret = none_brands.intersection(ret)
-    self.assertEqual(len(none_brands_in_ret), 0, f'Brands with None values in ignore_none=True result: {none_brands_in_ret}')
-
-
 if __name__ == "__main__":
   unittest.main()