Update vars.tf

vars.tf

@@ -13,10 +13,6 @@ variable "public-network-name" {
 variable "keypair-name" {
   default = "os-gen-keypair"
 }
-
-variable "public-key" {
-  default = "${file("~/.ssh/id_rsa.pub")}"
-  }
   
 variable "enable-dhcp" {
   description = "whether dhcp in enabled. defualt is true"