FIX: LGTM recommendations: Unused import

Import of '...' is not used.

https://lgtm.com/rules/6770079/

Author: DimitriPapadopoulos

nibabel/pydicom_compat.py

@@ -23,7 +23,6 @@
 # Module has (apparently) unused imports; stop flake8 complaining
 # flake8: noqa
 
-import numpy as np
 from .deprecated import deprecate_with_version
 
 have_dicom = True

nisext/py3builder.py

@@ -1,9 +1,6 @@
 """ distutils utilities for porting to python 3 within 2-compatible tree """
 
 
-import sys
-import re
-
 try:
     from distutils.command.build_py import build_py_2to3
 except ImportError:

setup.py

@@ -10,7 +10,6 @@
 """Build helper."""
 
 import sys
-import os
 
 from setuptools import setup
 import versioneer

tools/make_tarball.py

@@ -4,8 +4,6 @@
 
 import commands
 import os
-import sys
-import shutil
 
 from  toollib import *
 

tools/mpkg_wrapper.py

@@ -16,8 +16,6 @@
 __docformat__ = 'restructuredtext'
 
 import sys
-import setuptools
-import bdist_mpkg
 
 def main():
     del sys.argv[0]