test/jdk/java/util/concurrent/tck/ConcurrentLinkedDequeTest.java

8234131: Miscellaneous changes imported from jsr166 CVS 2020-06
Reviewed-by: martin

@@ -1008,11 +1008,10 @@
      * Don't return null when the deque is observably never empty.
      * https://bugs.openjdk.java.net/browse/JDK-8189387
      * ant -Djsr166.expensiveTests=true -Djsr166.tckTestClass=ConcurrentLinkedDequeTest -Djsr166.methodFilter=testBug8189387 tck
      */
     public void testBug8189387() {
-        final ThreadLocalRandom rnd = ThreadLocalRandom.current();
         Object x = new Object();
         for (int n = expensiveTests ? 100_000 : 10; n--> 0; ) {
             ConcurrentLinkedDeque<Object> d = new ConcurrentLinkedDeque<>();
             Runnable add = chooseRandomly(
                 () -> d.addFirst(x),