delete more logs

Author: Sunny Jiao

framework/src/test/java/org/tron/core/services/RpcApiServicesTest.java

@@ -244,14 +244,6 @@ public static void destroy() {
     Args.clearParam();
   }
 
-  @Before
-  public void start() {
-  }
-
-  @After
-  public void end() throws InterruptedException {
-  }
-
   @Test
   public void testGetBlockByNum() {
     NumberMessage message = NumberMessage.newBuilder().setNum(0).build();