sty: fix unused import, run black

Author: oesteban

nitransforms/io/afni.py

@@ -3,7 +3,6 @@
 import numpy as np
 from nibabel.affines import obliquity, voxel_sizes, from_matvec
 
-from ..patched import shape_zoom_affine
 from .base import (
     BaseLinearTransformList,
     DisplacementsField,
@@ -61,7 +60,8 @@ def from_string(cls, string):
         lines = [
             line
             for line in string.splitlines()
-            if line.strip() and not (line.startswith("#") or "3dvolreg matrices" in line)
+            if line.strip()
+            and not (line.startswith("#") or "3dvolreg matrices" in line)
         ]
 
         if not lines: