tbDate:fix bug now comments 1

common/script/script-api/src/main/java/org/thingsboard/script/api/tbel/TbDate.java

@@ -221,10 +221,6 @@ public class TbDate implements Serializable, Cloneable {
     public static long now() {
         return Instant.now().toEpochMilli();
     }
-    public static String nowToString() {
-        return Instant.now().toString();
-    }
-
     public long parseSecond() {
         return instant.getEpochSecond();
     }

common/script/script-api/src/test/java/org/thingsboard/script/api/tbel/TbDateTest.java

@@ -484,12 +484,6 @@ class TbDateTest {
         Assert.assertEquals(expected, d.toLocaleString());
     }
 
-    @Test
-    public void TestNow() {
-        assertTrue(TbDate.now() > 0);
-        assertNotNull(TbDate.nowToString());
-    }
-
     @Test
     public void TestToUTC() {
         Assert.assertEquals(-2209075200000L, TbDate.UTC(0));