Drop setup.py and setup.cfg

devstack isn't a python project, these were introduced only for docs
building and made redundant with [0]. We can remove them now.

[0] Iedcc008b170821aa74acefc02ec6a243a0dc307c

Signed-off-by: Dr. Jens Harbott <harbott@osism.tech>
Change-Id: I90ca1c6918c016d10c579fbae49d13fff1ed59af
2 files changed