fix(nebula): remove obselete variable

modules/nebula/main.tf

@@ -6,7 +6,6 @@ variable "vms" {
         vcpu = number
         ram = number
         system_image_persistent = bool
-        data_image_persistent = bool
         data_disks = list(object({
           name = string
           size = string
@@ -136,7 +135,6 @@ resource "opennebula_template" "vm_template" {
     arch = "x86_64"
     boot = "disk0,nic0"
   }
-  //labels = var.tag_labels
 
   dynamic "nic" {
     for_each = each.value.network_interfaces