STY: Further simplification

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

Author: DimitriPapadopoulos

nipype/interfaces/io.py

@@ -1300,7 +1300,7 @@ def _list_outputs(self):
             if self.inputs.drop_blank_outputs:
                 outputs[key] = [x for x in outputs[key] if x is not None]
             else:
-                if any(val is None for val in outputs[key]):
+                if None in outputs[key]:
                     outputs[key] = []
             if len(outputs[key]) == 0:
                 outputs[key] = None