test(ggj): use goldens only on one unit test case

Author: diegomarquezp

sdk-platform-java/gapic-generator-java/src/test/java/com/google/api/generator/gapic/composer/grpc/ServiceStubSettingsClassComposerTest.java

@@ -35,9 +35,7 @@ static Stream<Arguments> data() {
             0),
         Arguments.of(
             "PublisherStubSettings",
-            GrpcTestProtoLoader.instance().parsePubSubPublisher().toBuilder()
-                .setGenerateVersionJava(true)
-                .build(),
+            GrpcTestProtoLoader.instance().parsePubSubPublisher(),
             "pubsub",
             "v1",
             0),

sdk-platform-java/gapic-generator-java/src/test/java/com/google/api/generator/gapic/composer/grpc/goldens/PublisherStubSettings.golden

@@ -522,7 +522,7 @@ public class PublisherStubSettings extends StubSettings<PublisherStubSettings> {
 
   @Override
   protected LibraryMetadata getLibraryMetadata() {
-    return LibraryMetadata.newBuilder().setVersion(Version.VERSION).build();
+    return LibraryMetadata.newBuilder().build();
   }
 
   /** Builder for PublisherStubSettings. */