Remove obsolete setuptools_extra_args

setup.py

@@ -140,10 +140,6 b" setup_args['cmdclass'] = {"
 # Handle scripts, dependencies, and setuptools specific things
 #---------------------------------------------------------------------------
 
-# This dict is used for passing extra arguments that are setuptools
-# specific to setup
-setuptools_extra_args = {}
-
 # setuptools requirements
 
 extras_require = dict(
@@ -186,10 +182,6 b' setup_args["extras_require"] = extras_require'
 # Do the actual setup now
 #---------------------------------------------------------------------------
 
-setup_args.update(setuptools_extra_args)
-
-
-
 def main():
     setup(**setup_args)