Bug#497324: Only dependency on cython was needed

Hi Vincent, Vincent Bernat wrote: setup.py builds lxml.etree.c and lxml.objectify.c when cython is present. Therefore, only the dependency with cython was necessary (plus the cleaning rule). Moreover, cython is a replacement for pyrex so the dependency on pyrex is not necessary.

Bug#497324: Only dependency on cython was needed

Hi Thomas! setup.py builds lxml.etree.c and lxml.objectify.c when cython is present. Therefore, only the dependency with cython was necessary (plus the cleaning rule). Moreover, cython is a replacement for pyrex so the dependency on pyrex is not necessary. I don't think this warrant