[aur-general] Deletion request: some mono packages

All following packages are orphaned (for quite some time). https://aur.archlinux.org/packages/monotorrent/ fail to build https://aur.archlinux.org/packages/monsoon/ depend upon monotorrent https://aur.archlinux.org/packages/monsoon-svn/ same as above https://aur.archlinux.org/packages/openvpn-admin/ fail to patch https://aur.archlinux.org/packages/mono-nat/ fail to build