Remove obsolete publish part

Author: fabaff

setup.py

@@ -1,7 +1,6 @@
 #!/usr/bin/env python3
 """Luftdaten Python Wrapper setup script."""
 import os
-import sys
 
 try:
     from setuptools import setup
@@ -13,10 +12,6 @@
 with open(os.path.join(here, 'README.rst'), encoding='utf-8') as readme_file:
     long_description = readme_file.read()
 
-if sys.argv[-1] == 'publish':
-    os.system('python3 setup.py sdist upload')
-    sys.exit()
-
 setup(
     name='luftdaten',
     version='0.6.4',