Drop recommendation to qt4-related packages
Since Qt4 will be eliminated in the Bullseye cycle, we should drop everything related to Qt4. This includes recommendation and suggestion to fcitx-frontend-qt4 and ibus-qt4.
Since Qt4 will be eliminated in the Bullseye cycle, we should drop everything related to Qt4. This includes recommendation and suggestion to fcitx-frontend-qt4 and ibus-qt4.