chore(storage): disable REGAPIC transport in storage v2

PiperOrigin-RevId: 486689296

google/storage/v2/BUILD.bazel

@@ -91,7 +91,7 @@ java_gapic_library(
         ":storage_java_grpc",
         "//google/iam/v1:iam_java_grpc",
     ],
-    transport = "grpc+rest",
+    transport = "grpc",
     deps = [
         ":storage_java_proto",
         "//google/iam/v1:iam_java_proto",
@@ -101,7 +101,6 @@ java_gapic_library(
 java_gapic_test(
     name = "storage_java_gapic_test_suite",
     test_classes = [
-        "com.google.storage.v2.StorageClientHttpJsonTest",
         "com.google.storage.v2.StorageClientTest",
     ],
     runtime_deps = [":storage_java_gapic_test"],
@@ -111,7 +110,7 @@ java_gapic_test(
 java_gapic_assembly_gradle_pkg(
     name = "google-cloud-storage-v2-java",
     include_samples = True,
-    transport = "grpc+rest",
+    transport = "grpc",
     deps = [
         ":storage_java_gapic",
         ":storage_java_grpc",
@@ -139,6 +138,7 @@ go_gapic_library(
     importpath = "cloud.google.com/go/storage/apiv2;storage",
     metadata = True,
     rest_numeric_enums = False,
+    transport = "grpc",
     service_yaml = "storage_v2.yaml",
     deps = [
         ":storage_go_proto",
@@ -206,6 +206,7 @@ php_grpc_library(
     deps = [":storage_php_proto"],
 )
 
+# PHP always supports gRPC and REST, but there is no PHP GAPIC for this API.
 php_gapic_library(
     name = "storage_php_gapic",
     srcs = [":storage_proto_with_info"],
@@ -238,7 +239,7 @@ nodejs_gapic_library(
     package = "google.storage.v2",
     rest_numeric_enums = False,
     service_yaml = "storage_v2.yaml",
-    transport = "grpc+rest",
+    transport = "grpc",
     deps = [],
 )