Remove unnecessary code

This was testing that the deprecated getter and the new getter returned
the same value. With the removal of the deprecated getter this check is
no longer required.

Author: markt-asf

src/test/java/org/apache/commons/pool3/impl/TestGenericObjectPool.java

@@ -975,7 +975,6 @@ void testAbandonedPool() throws TestException, InterruptedException {
         config.setJmxEnabled(false);
         GenericObjectPool<String, TestException> abandoned = new GenericObjectPool<>(simpleFactory, config);
         abandoned.setDurationBetweenEvictionRuns(Duration.ofMillis(100)); // Starts evictor
-        assertEquals(abandoned.getRemoveAbandonedTimeoutDuration(), abandoned.getRemoveAbandonedTimeoutDuration());
 
         // This is ugly, but forces GC to hit the pool
         final WeakReference<GenericObjectPool<String, TestException>> ref = new WeakReference<>(abandoned);