Fixing indentation error, and keeping only check for setup.py in project root directory in __main__.py

cibuildwheel/__main__.py

@@ -105,24 +105,8 @@ def main():
     # This needs to be passed on to the docker container in linux.py
     os.environ['CIBUILDWHEEL'] = '1'
 
-    try:
-        project_setup_py = os.path.join(project_dir, 'setup.py')
-        name_output = subprocess.check_output([sys.executable, project_setup_py, '--name'],
-                                              universal_newlines=True)
-        # the last line of output is the name
-        package_name = name_output.strip().splitlines()[-1]
-    except subprocess.CalledProcessError as err:
-        if not os.path.exists(project_setup_py):
-            print('cibuildwheel: Could not find setup.py at root of project', file=sys.stderr)
-            exit(2)
-        else:
-            print(err.output)
-            print('cibuildwheel: Failed to get name of the package. Command was %s' % err.cmd,
-                  file=sys.stderr)
-            exit(err.returncode)
-     if package_name == '' or package_name == 'UNKNOWN':
-        print('cibuildwheel: Invalid package name "%s". Check your setup.py' % package_name,
-              file=sys.stderr)
+    if not os.path.exists(os.path.join(project_dir, 'setup.py')):
+        print('cibuildwheel: Could not find setup.py at root of project', file=sys.stderr)
         exit(2)
 
     build_options = dict(