#18 Delete qt_??.qm files

[AlexL]

Qt translations for qt5 presents in many qm files. So better to use symlinks on system qt translations:
for qt_tr in ls %{_qt5_translationdir}
do
ln -s %{_qt5_translationdir}/$qt_tr %{buildroot}%{_datadir}/netemul/translation/$qt_tr
done