sty: pacify flake8

Author: oesteban

nitransforms/nonlinear.py

@@ -11,7 +11,6 @@
 from functools import partial
 from pathlib import Path
 import numpy as np
-from scipy import ndimage as ndi
 from nibabel.funcs import four_to_three
 from nibabel.loadsave import load as _nbload