fix example templates
fix example templates

With the FQDN specified, it throws error:
 ```
1 error(s) occurred:
* azurerm_container_service.test: "agent_pool_profile.0.fqdn": this field cannot be set
```
abhijeetgaiha/terraform-provider-azurerm,thiagocaiubi/terraform-provider-azurerm,sebastus/terraform-provider-azurerm,thiagocaiubi/terraform-provider-azurerm,abhijeetgaiha/terraform-provider-azurerm,abhijeetgaiha/terraform-provider-azurerm,sebastus/terraform-provider-azurerm,thiagocaiubi/terraform-provider-azurerm,sebastus/terraform-provider-azurerm