MNT Remove build_tools/windows/windows_testing_downloader.ps1
@@ -2225,10 +2225,6 @@ def train_test_split(*arrays, **options):
safe_indexing(a, test)) for a in arrays))
-# Tell nose that train_test_split is not a test
-train_test_split.__test__ = False
-
-
def _build_repr(self):
# XXX This is copied from BaseEstimator's get_params
cls = self.__class__
