[Fedora-livecd-list] Delete screen welcome in live fedora 17 live

[carlos carrera]

I am using Fedora's live 17 x86_64 This one generated in USB. I need to
remove the message of welcome and that does not ask if I want to install on
disc or to start from USB. I want that it starts the live directly from
USB. I do not want that the user asks me but of login automatic to an
already created user. Thank you for the possible disinterested help.