You can change the grub timeout to 0. In the file
/etc/default/grub there needs to be a line that reads
If the line is there edit it. If the line doesn't exist add it. In either case, after you make the change you need to run
PHP Code:
grub2-mkconfig -o /boot/grub2/grub.cfg
When you reboot it should boot straight into Fedora.