remove unused method

Author: purificant

tests/conftest.py

@@ -15,12 +15,6 @@ def get_all_test_vectors() -> dict:
     }
 
 
-@pytest.fixture
-def get_test_vectors_v2() -> dict:
-    """Return spec for v2 test vectors."""
-    return get_test_vector("v2")
-
-
 def get_test_vector(version: str) -> dict:
     """Return deserialised json."""
     with open(get_test_vector_path(version)) as json_file: