spec: Do not install *.py[co] in python examples

Unfortunately, rpm is stupid enough to bytycompile python scripts even
though they are located in /usr/share/doc/libvirt-python-*/examples and
it does so after %install phase is finished. Thus there's no way we
could remove those files from BUILDROOT. As a workaround, we may safely
remove the examples subdirectory completely without losing anything. The
python scripts that were installed there are also copied directly into
/usr/share/doc/libvirt-python-*/ by

    %doc python/tests/*.py

rule. And yes, the files are actually tests, not examples.

libvirt.spec.in

@@ -1392,6 +1392,8 @@ rm -f $RPM_BUILD_ROOT%{_datadir}/augeas/lenses/tests/test_libvirtd_lxc.aug
 
 %if ! %{with_python}
 rm -rf $RPM_BUILD_ROOT%{_datadir}/doc/libvirt-python-%{version}
+%else
+rm -rf $RPM_BUILD_ROOT%{_datadir}/doc/libvirt-python-%{version}/examples
 %endif
 
 %if ! %{with_qemu}