[PATCH 1 of 6 import-refactor V2] setup: remove unused py_modules argument to setup()

[Gregory Szorc]

# HG changeset patch
# User Gregory Szorc <gregory.szorc at gmail.com>
# Date 1448428646 28800
#      Tue Nov 24 21:17:26 2015 -0800
# Node ID 82b37470a224dc1e496b86b0ba14df391a3f3ecd
# Parent  61fbf5dc12b23e7a2a30cf04ebd9f096c42a1f61
setup: remove unused py_modules argument to setup()

It is never populated and is useless clutter.

diff --git a/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -478,18 +478,16 @@ cmdclass = {'build': hgbuild,
             'install_scripts': hginstallscripts,
             'build_hgexe': buildhgexe,
             }
 
 packages = ['mercurial', 'mercurial.hgweb', 'mercurial.httpclient',
             'hgext', 'hgext.convert', 'hgext.highlight', 'hgext.zeroconf',
             'hgext.largefiles']
 
-pymodules = []
-
 common_depends = ['mercurial/util.h']
 
 osutil_ldflags = []
 
 if sys.platform == 'darwin':
     osutil_ldflags += ['-framework', 'ApplicationServices']
 
 extmodules = [
@@ -631,17 +629,16 @@ setup(name='mercurial',
           'Operating System :: OS Independent',
           'Operating System :: POSIX',
           'Programming Language :: C',
           'Programming Language :: Python',
           'Topic :: Software Development :: Version Control',
       ],
       scripts=scripts,
       packages=packages,
-      py_modules=pymodules,
       ext_modules=extmodules,
       data_files=datafiles,
       package_data=packagedata,
       cmdclass=cmdclass,
       distclass=hgdist,
       options={'py2exe': {'packages': ['hgext', 'email']},
                'bdist_mpkg': {'zipdist': False,
                               'license': 'COPYING',