MAINT remove duplicate import in test_pca.py
@@ -10,7 +10,6 @@ from sklearn.utils.testing import assert_greater
from sklearn.utils.testing import assert_raise_message
from sklearn.utils.testing import assert_raises
from sklearn.utils.testing import assert_raises_regex
-from sklearn.utils.testing import assert_raise_message
from sklearn.utils.testing import assert_no_warnings
from sklearn.utils.testing import assert_warns_message
from sklearn.utils.testing import ignore_warnings
