test: remove test_default_set_contents (parsing tests cover membership)

Author: derek73

tests/test_first_name_prefixes.py

@@ -1,15 +1,9 @@
 from nameparser import HumanName
-from nameparser.config import CONSTANTS
-
 from tests.base import HumanNameTestBase
 
 
 class FirstNamePrefixesTestCase(HumanNameTestBase):
 
-    def test_default_set_contents(self) -> None:
-        for word in ("abdul", "abdel", "abdal", "abu", "abou", "umm"):
-            assert word in CONSTANTS.first_name_prefixes, f"{word!r} missing from first_name_prefixes"
-
     def test_is_first_name_prefix_true(self) -> None:
         hn = HumanName("test")
         assert hn.is_first_name_prefix("Abdul")