[Python] Remove unused Python imports

bindings/python/setup_pypi.py

@@ -3,7 +3,6 @@
 from distutils import sysconfig
 from os import getenv, walk, path, path, getcwd, chdir
 from platform import system
-import subprocess
 
 # Remove the "-Wstrict-prototypes" compiler option, which isn't valid for C++.
 cfg_vars = sysconfig.get_config_vars()

packaging/wheel/setup.py

@@ -1,4 +1,4 @@
-from setuptools import setup, Extension
+from setuptools import setup
 from setuptools.command.install import install
 from setuptools.command.sdist import sdist
 from wheel.bdist_wheel import bdist_wheel
@@ -12,7 +12,6 @@
 
 import subprocess
 import sys
-import getpass
 
 def get_version():
     version = subprocess.check_output(['./genversion.sh', '--print-only'])