remove unused packages

Author: oesteban

nipype/interfaces/fsl/base.py

@@ -26,7 +26,6 @@
 
 """
 from __future__ import print_function, division, unicode_literals, absolute_import
-from builtins import open, object
 
 from glob import glob
 import os
@@ -68,7 +67,6 @@ class Info(PackageInfo):
     def parse_version(raw_info):
         return raw_info.splitlines()[0]
 
-
     @classmethod
     def output_type_to_ext(cls, output_type):
         """Get the file extension for the given output type.