Remove portNames for default INTERNAL backend services in tests (#3497) (#2055)

* remove port names that aren't supported in tests

* missed a port name

Signed-off-by: Modular Magician <[email protected]>

Author: modular-magician

.changelog/3497.txt

@@ -0,0 +1,3 @@
+```release-note:none
+
+```

google-beta/resource_compute_region_backend_service_test.go

@@ -443,7 +443,6 @@ resource "google_compute_region_backend_service" "foobar" {
   name          = "%s"
   health_checks = [google_compute_health_check.zero.self_link]
   region        = "us-central1"
-  port_name     = "http"
 }
 
 resource "google_compute_health_check" "zero" {
@@ -464,7 +463,6 @@ resource "google_compute_region_backend_service" "foobar" {
   name          = "%s"
   health_checks = [google_compute_health_check.one.self_link]
   region        = "us-central1"
-  port_name     = "http"
 }
 
 resource "google_compute_health_check" "zero" {
@@ -500,7 +498,6 @@ data "google_compute_image" "my_image" {
 resource "google_compute_region_backend_service" "lipsum" {
   name        = "%s"
   description = "Hello World 1234"
-  port_name   = "http"
   protocol    = "TCP"
   region      = "us-central1"
   timeout_sec = %v
@@ -568,7 +565,6 @@ data "google_compute_image" "my_image" {
 resource "google_compute_region_backend_service" "lipsum" {
   name        = "%s"
   description = "Hello World 1234"
-  port_name   = "http"
   protocol    = "TCP"
   region      = "us-central1"
   timeout_sec = %v