Update bindep.txt
Update bindep.txt

Since we're not using XML anymore, remove now unused binary package
dependencies.

Add python-devel for RPM platforms.

Note that this test is self-testing - the new config will be used
directly in the OpenStack CI system.

Change-Id: If0195ba62a24ca1ce23b827bb2282099597b38e2

openstack/api-site,openstack/api-site,openstack/api-site,openstack/api-site