remove some variable defaults

variables.tf

@@ -9,10 +9,6 @@ variable "disk_size" {
 
 variable "admin_authorized_keys" {
   type = list(string)
-  default = [
-    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOodpLr+FDRyKyHjucHizNLVFHZ5AQmE9GmxMnOsSoaw pimkunis@thinkpadpim",
-    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINUZp4BCxf7uLa1QWonx/Crf8tYZ5MKIZ+EuaBa82LrV user@user-laptop"
-  ]
 }
 
 variable "memory" {
@@ -32,35 +28,29 @@ variable "insecure_password" {
 
 variable "use_host_cert" {
   type    = bool
-  default = true
+  default = false
 }
 
 variable "disk_pool" {
-  type    = string
-  default = "disk"
+  type = string
 }
 
 variable "disk_base" {
-  type    = string
-  default = "debian-bookworm.qcow2"
+  type = string
 }
 
 variable "disk_base_pool" {
-  type    = string
-  default = "iso"
+  type = string
 }
 
 variable "cloudinit_pool" {
-  type    = string
-  default = "init"
+  type = string
 }
 
 variable "bridge_name" {
   type = string
-  default = "dmzbr"
 }
 
 variable "ca_host" {
   type = string
-  default = "hermes.dmz"
 }