To remove the script in full without re flashing your box...
Push down on remote, Then push Blue button (favourites)
Then you highlight a iptv bouquet, Then press the menu button, Pick remove entry, Delete all iptv bouquets,
Once you have deleted all iptv bouquets, Push exit.
Then ftp into the box and go into /etc/enigma2 and delete ALL the iptv.sh files
Then go into /etc/epgimport and remove all the files except
readme.txt
rytec.sources.xml
satmate.sources.xml
and then finally go into /etc/cron/crontabs and remove the root file.
Then reboot the box.