Drop redundant qemu-trace-stap copy from qemu-user-static (rhbz#2061584)
    
    The static build of QEMU installs a copy of 'qemu-trace-stap' python
    script, which gets renamed to 'qemu-trace-stap-static' by an overly
    enthusiastic wildcard. This ends up adding a python dependency to
    the qemu-user-static RPM, which is unhelpful.
    
    Anyone who wants to trace QEMU user binaries with the stap helper
    can easily install qemu-common as desired.
    
    Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>