remove new instance code

trpc-spring-support/trpc-spring/src/test/java/com/tencent/trpc/spring/context/configuration/AddFilterTRpcConfigManagerCustomizerTest.java

@@ -55,7 +55,6 @@ public void testAddClientFilters() {
 
     @Test
     public void testAddServerFilters() {
-        AddFilterTRpcConfigManagerCustomizer addFilterTRpcConfigManagerCustomizer = new AddFilterTRpcConfigManagerCustomizer();
         AddFilterTRpcConfigManagerCustomizer customizer = addFilterTRpcConfigManagerCustomizer.addServerFilters(
                 FILTER_ONE, FILTER_TWO);
         Assert.assertEquals(addFilterTRpcConfigManagerCustomizer, customizer);