Remove run_tests.sh
Remove run_tests.sh

It was deprecated while ago. [1]

[1] Ic68858aaf1a519085dff394e6edc8c8fe6aeee6a

Change-Id: Ib3431760cd828edc78a1dd36829f19d72bbe1116

huntxu/neutron,mahak/neutron,eayunstack/neutron,mahak/neutron,openstack/neutron,eayunstack/neutron,huntxu/neutron,noironetworks/neutron,noironetworks/neutron,mahak/neutron,openstack/neutron,openstack/neutron