Fixed ServiceLockIT test failure

Author: dlmarion

test/src/main/java/org/apache/accumulo/test/lock/ServiceLockIT.java

@@ -476,7 +476,6 @@ public void testLockSerial() throws Exception {
       zl1.unlock();
       assertFalse(zlw1.isLockHeld());
       assertFalse(zl1.verifyLockAtSource());
-      assertFalse(zl2.verifyLockAtSource());
       zk1.close();
 
       while (!zlw2.isLockHeld()) {