Remove specialized joliet handling.
Remove specialized joliet handling.

Instead we handle it inside the update loop at the end,
which means we will do the correct thing if there are
multiple joliet records.

Signed-off-by: Chris Lalancette <281cd07d7578d97c83271fbbf2faddb83ab3791c@gmail.com>

clalancette/pyiso,clalancette/pycdlib