The installation made a 17GB swap partition which I don't have plans to use (I don't hibernate my PC). How can I safely delete it?
As root invoke
fdisk -l to list your drives. Then
fdisk /dev/sdx x being the drive descriptor in question. "m" will list all the command options. "p" will print all the partitions and you can see which one is formatted as swap. "d" will delete it. "w" will write (save) the change.
CAREFUL! The wrong choice will cause much damage!
I advise you to disable swap (or to create swap file) before making any changes to swap partition. Info at the link below