[aur-general] Deletion Request crossover-pro, crossover-games, crossover-standard

The packages crossover-pro, crossover-games and crossover-standard are replaced by the new crossover package. Please delete them: https://aur.archlinux.org/packages.php?ID=16777 https://aur.archlinux.org/packages.php?ID=14187 https://aur.archlinux.org/packages.php?ID=22027