Remove remaining references to release file_size field

Signed-off-by: Dan McGee <dan@archlinux.org>
Remove release fields we can pull from the torrent

This makes entering new releases a bit less cumbersome as we don't
really need to enter either the file size or the torrent infohash.

Signed-off-by: Dan McGee <dan@archlinux.org>
Bump psycopg2 version

Signed-off-by: Dan McGee <dan@archlinux.org>