[KPhotoAlbum] backend in kpa-backup.sh

[Christoph Moseler]

Hi list,

this evening I played around a little bit with backup script:

chris at pc-chris:~/Photos$  ~/build/kphotoalbum/script/kpa-backup.sh -b
KPhotoalbum uses backend `'...
This backend is not currently supported!

grep backend ~/.kde/share/config/kphotoalbumrc
returns a lot of nothing

I bet the reason is that the config value "backend" has been removed as 
it became obsolete after mysql has been thrown away.

Therefore the check in the script if xml-backend is used is no longer 
necessary, I think.

Cheers,
Christoph