[Trivial] Remove executable privilege of setup.py
[Trivial] Remove executable privilege of setup.py

This file actually is not required to be executable.

Change-Id: I44bbbeaaf298b1bb640bcdf00883a84fe3261fa5

sapcc/python-monascaclient,stackforge/python-monascaclient,sapcc/python-monascaclient,openstack/python-monascaclient,openstack/python-monascaclient,stackforge/python-monascaclient