Remove unnecessary blank lines

Author: steverao

instrumentation/apache-dubbo-2.7/testing/src/main/java/io/opentelemetry/instrumentation/apachedubbo/v2_7/AbstractDubboTest.java

@@ -132,7 +132,6 @@ void testApacheDubboBase() throws ReflectiveOperationException {
                     "hello", new String[] {String.class.getName()}, new Object[] {"hello"}));
 
     assertThat(response).isEqualTo("hello");
-
     testing()
         .waitAndAssertTraces(
             trace ->