agent: removed some requires from the spec file as a response to Pavel Zhukov's comments.
agent: removed some requires from the spec file as a response to Pavel Zhukov's comments.

Change-Id: If08d8fd6d6d32c1513800d00d4d836fb332ebe97

silenceli/oga-windows,edwardbadboy/ovirtagent-ubuntu,silenceli/oga-windows,edwardbadboy/ovirtagent-ubuntu,edwardbadboy/ovirtagent-ubuntu,oVirt/ovirt-guest-agent,oVirt/ovirt-guest-agent,edwardbadboy/ovirtagent-ubuntu,silenceli/oga-windows,oVirt/ovirt-guest-agent,silenceli/oga-windows,oVirt/ovirt-guest-agent