communal@communal:~$ sudo dpkg -r libtorrent
(Reading database ... 254787 files and directories currently installed.)
Removing libtorrent (0.13.6-1) ...
dpkg: warning: while removing libtorrent, directory '/usr/local/lib/pkgconfig' not empty so not removed
dpkg: warning: while removing libtorrent, directory '/usr/local/include/torrent/utils' not empty so not removed
communal@communal:~$ sudo dpkg -r rtorrent
(Reading database ... 254702 files and directories currently installed.)
Removing rtorrent (0.9.6-1) ...
dpkg: warning: while removing rtorrent, directory '/usr/local/bin' not empty so not removed