Fix TestAccComputeRoute_routeBasicExample (hashicorp#2124)

<!-- This change is generated by MagicModules. -->
/cc @rileykarson

Author: modular-magician

docs/r/compute_route.html.markdown

@@ -56,20 +56,13 @@ resource "google_compute_route" "default" {
   name        = "network-route"
   dest_range  = "15.0.0.0/24"
   network     = "${google_compute_network.default.name}"
-  next_hop_ip = "10.0.1.5"
+  next_hop_ip = "10.132.1.5"
   priority    = 100
 }
 
 resource "google_compute_network" "default" {
   name = "compute-network"
 }
-
-resource "google_compute_subnetwork" "default" {
-  name          = "compute-subnetwork"
-  ip_cidr_range = "10.0.0.0/16"
-  network       = "${google_compute_network.default.self_link}"
-  region        = "us-central1"
-}
 ```
 
 ## Argument Reference