cmake remove() examples

sbmlteam/libsbml src/bindings/python/setup.py.cmake :58 

#    os.remove('./libsbml/__init__.py')

sbmlteam/libsbml src/bindings/python/setup.py.cmake :63 

#    os.remove('./libsbml/__init__.py')

mosra/magnum src/MagnumPlugins/MagnumFont/CMakeLists.txt :28 

# TODO: remove (and update all other docs) when we have better