If wipedisk script is not used, only the
cgts-vg lvm volume will be deleted in the kickstart files
and other lvm volumes will still be in use (e.g nova-local)
and anaconda will throw an error.
We fix this by removing all the lvm volumes in
the kickstart files.
Closes-Bug: 1881327
Change-Id: I3726d5f0aa662212d64f4a4f100d71cb430eb7cd
Signed-off-by: Mihnea Saracin <Mihnea.Saracin@windriver.com>