[hibernate#1001] Remove setup of custom VertxInstance for tests

It's not required anymore because now we get the
Vert.x instance from the current context.

Author: DavideD

hibernate-reactive-core/src/test/java/org/hibernate/reactive/BaseReactiveTest.java

@@ -26,7 +26,6 @@
 import org.hibernate.reactive.provider.service.ReactiveSchemaManagementTool;
 import org.hibernate.reactive.stage.Stage;
 import org.hibernate.reactive.testing.SessionFactoryManager;
-import org.hibernate.reactive.vertx.VertxInstance;
 import org.hibernate.tool.schema.spi.SchemaManagementTool;
 
 import org.junit.After;
@@ -189,7 +188,6 @@ private void startFactoryManager(Promise<Object> p, Configuration configuration
 
 	private SessionFactory createHibernateSessionFactory(Configuration configuration) {
 		StandardServiceRegistryBuilder builder = new ReactiveServiceRegistryBuilder()
-				.addService( VertxInstance.class, (VertxInstance) () -> vertxContextRule.vertx() )
 				.applySettings( configuration.getProperties() );
 		addServices( builder );
 		StandardServiceRegistry registry = builder.build();