old_contents: #!/usr/bin/env python
  # coding: utf-8
  
  import setuptools
  setuptools.setup(
      extras_requires=["green", "docutils", "Pygments"],
  )
  
new_contents: #!/usr/bin/env python
  # coding: utf-8
  
  import setuptools
  setuptools.setup()
  
subject: Remove extras declaration from setup.py