Update niworkflows/interfaces/gradunwarp.py

Co-authored-by: Chris Markiewicz <[email protected]>

Author: bpinsard

niworkflows/interfaces/gradunwarp.py

@@ -29,12 +29,6 @@
     SimpleInterface
 )
 
-try:
-    import gradunwarp
-    has_gradunwarp = True
-except ImportError:
-    has_gradunwarp = False
-
 
 class _GradUnwarpInputSpec(TraitedSpec):
     infile = File(exists=True, mandatory=True, desc="input image to be corrected")