Revert "add to GKE cluster module"

This reverts commit df0b4c532a.

CHANGELOG.md

@@ -8,7 +8,6 @@ All notable changes to this project will be documented in this file.
 - fix Cloud NAT module internal router name lookup
 - re-enable and update outputs for the foundations environments example
 - add peering route configuration for private clusters to GKE cluster module
-- add `workload_metadata_config` variable to GKE cluster module
 - **incompatible changes** in the GKE nodepool module
   - rename `node_config_workload_metadata_config` variable to `workload_metadata_config`
   - new default for `workload_metadata_config` is `GKE_METADATA_SERVER`

modules/gke-cluster/README.md

@@ -65,7 +65,6 @@ module "cluster-1" {
 | *resource_usage_export_config* | Configure the ResourceUsageExportConfig feature. | <code title="object&#40;&#123;&#10;enabled &#61; bool&#10;dataset &#61; string&#10;&#125;&#41;">object({...})</code> |  | <code title="&#123;&#10;enabled &#61; null&#10;dataset &#61; null&#10;&#125;">...</code> |
 | *vertical_pod_autoscaling* | Enable the Vertical Pod Autoscaling feature. | <code title="">bool</code> |  | <code title="">null</code> |
 | *workload_identity* | Enable the Workload Identity feature. | <code title="">bool</code> |  | <code title="">true</code> |
-| *workload_metadata_config* | Define how to expose node metadata to workloads. | <code title="">string</code> |  | <code title="">GKE_METADATA_SERVER</code> |
 
 ## Outputs
 

modules/gke-cluster/main.tf

@@ -208,10 +208,6 @@ resource "google_container_cluster" "cluster" {
     }
   }
 
-  workload_metadata_config {
-    node_metadata = var.workload_metadata_config
-  }
-
 }
 
 resource "google_compute_network_peering_routes_config" "gke_master" {

modules/gke-cluster/variables.tf

@@ -245,9 +245,3 @@ variable "workload_identity" {
   type        = bool
   default     = true
 }
-
-variable "workload_metadata_config" {
-  description = "Define how to expose node metadata to workloads."
-  type        = string
-  default     = "GKE_METADATA_SERVER"
-}