Remove unnecessary delay in CounterTest.

Change-Id: I5a29c88f803c2d01f9b4f502b64ad4d1460b977b
diff --git a/utils/misc/src/test/java/org/onlab/util/CounterTest.java b/utils/misc/src/test/java/org/onlab/util/CounterTest.java
index 963f7db..cb085bb 100644
--- a/utils/misc/src/test/java/org/onlab/util/CounterTest.java
+++ b/utils/misc/src/test/java/org/onlab/util/CounterTest.java
@@ -45,10 +45,8 @@
 
     @Test
     public void freeze() {
-        Counter tt = new Counter();
-        tt.add(123L);
-        assertEquals("incorrect number of bytes", 123L, tt.total());
-        delay(1000);
+        long now = System.currentTimeMillis();
+        Counter tt = new Counter(now, 123L, now + 1000);
         tt.freeze();
         tt.add(123L);
         assertEquals("incorrect number of bytes", 123L, tt.total());