[ROCKETMQ-53] Polish unit tests for rocketmq-common

common/src/test/java/org/apache/rocketmq/common/UtilAllTest.java

@@ -61,11 +61,6 @@ public class UtilAllTest {
         assertThat(properties.getProperty("demoName")).isEqualTo("TestDemo");
     }
 
-    @Test
-    public void testTimeMillisToHumanString() {
-        assertThat(UtilAll.timeMillisToHumanString(1485078178610L)).isEqualTo("20170122174258610");
-    }
-
     @Test
     public void testIsPropertiesEqual() {
         final Properties p1 = new Properties();