feat: Swapped tofu init scripting for ansible scripting

infra/modules/vpn/variables.tf

@@ -22,18 +22,3 @@ variable "allowed_ssh_source_ips" {
   description = "CIDRs allowed to reach port 22 on vpn."
   type        = list(string)
 }
-
-variable "bootstrap_script" {
-  description = "Rendered post-install script, uploaded and executed on the server immediately after creation."
-  type        = string
-}
-
-variable "ssh_private_key_path" {
-  description = "Local path to the private key matching one of var.ssh_key_ids, used to run the bootstrap script over SSH."
-  type        = string
-}
-
-variable "deploy_user" {
-  description = "Non-root sudo user created by the bootstrap script - services/vpn is copied into this user's home directory."
-  type        = string
-}