Updated descriptions for DNS variables (closes terraform-aws-modules#14)

Author: antonbabenko

variables.tf

@@ -46,12 +46,12 @@ variable "azs" {
 }
 
 variable "enable_dns_hostnames" {
-  description = "Should be true if you want to use private DNS within the VPC"
+  description = "Should be true to enable DNS hostnames in the VPC"
   default     = false
 }
 
 variable "enable_dns_support" {
-  description = "Should be true if you want to use private DNS within the VPC"
+  description = "Should be true to enable DNS support in the VPC"
   default     = false
 }
 
@@ -80,11 +80,6 @@ variable "map_public_ip_on_launch" {
   default     = true
 }
 
-variable "enable_vpn_gateway" {
-  description = "Should be true if you want to create a new VPN Gateway resource and attach it to the VPC"
-  default     = false
-}
-
 variable "private_propagating_vgws" {
   description = "A list of VGWs the private route table should propagate"
   default     = []
@@ -129,36 +124,3 @@ variable "elasticache_subnet_tags" {
   description = "Additional tags for the elasticache subnets"
   default     = {}
 }
-
-variable "enable_dhcp_options" {
-  description = "Should be true if you want to specify a DHCP options set with a custom domain name, DNS servers, NTP servers, netbios servers, and/or netbios server type"
-  default     = false
-}
-
-variable "dhcp_options_domain_name" {
-  description = "Specifies DNS name for DHCP options set"
-  default     = ""
-}
-
-variable "dhcp_options_domain_name_servers" {
-  description = "Specify a list of DNS server addresses for DHCP options set, default to AWS provided"
-  type        = "list"
-  default     = ["AmazonProvidedDNS"]
-}
-
-variable "dhcp_options_ntp_servers" {
-  description = "Specify a list of NTP servers for DHCP options set"
-  type        = "list"
-  default     = []
-}
-
-variable "dhcp_options_netbios_name_servers" {
-  description = "Specify a list of netbios servers for DHCP options set"
-  type        = "list"
-  default     = []
-}
-
-variable "dhcp_options_netbios_node_type" {
-  description = "Specify netbios node_type for DHCP options set"
-  default     = ""
-}