fix 201-aks-helm (#183)

quickstart/201-aks-helm/main.tf

@@ -1,18 +1,7 @@
-# The Azure Active Resource Manager Terraform provider
-provider "azurerm" {
-  version = "=1.36.1"
-}
-
-# The Azure Active Directory Terraform provider
-provider "azuread" {
-  version = "=0.6.0"
-}
-
-# Reference to the current subscription.  Used when creating role assignments
-data "azurerm_subscription" "current" {}
+resource "random_pet" "rand" {}
 
 # The main resource group for this deployment
 resource "azurerm_resource_group" "default" {
-  name     = "${var.name}-${var.environment}-rg"
-  location = "${var.location}"
+  name     = "${var.name}-${var.environment}-rg-${random_pet.rand.id}"
+  location = var.location
 }