Lean on defaults

distros/ubuntu-18.04-x86_64.pkrvars.hcl

@@ -1,5 +1,4 @@
 distro = "ubuntu"
-arch = "x86_64"
 version = "18.04"
 iso = {
 	#url = "http://releases.ubuntu.com/18.04/ubuntu-18.04.6-live-server-amd64.iso"
@@ -7,7 +6,6 @@ iso = {
 	url = "http://cdimage.ubuntu.com/ubuntu/releases/18.04/release/ubuntu-18.04.6-server-amd64.iso"
 	checksum = "f5cbb8104348f0097a8e513b10173a07dbc6684595e331cb06f93f385d0aecf6"
 }
-boot_wait = "15s"
 boot_command = [
 	"<esc><wait1>",
 	"<f6><esc><bs><bs><bs><bs><bs><bs><bs><bs><bs><bs>",
@@ -18,4 +16,3 @@ boot_command = [
 	"console=ttyS0 ",
 	"<enter><wait1>"
 ]
-ssh_handshake_attempts = 1000