Remove renewal in retention lease recovery test (#42536)

This commit removes the act of renewing some retention leases during a
retention lease recovery test. Having renewal does not add anything
extra to this test, but does allow for some situations where the test
can fail spuriously (i.e., in a way that does not indicate that
production code is broken).

server/src/test/java/org/elasticsearch/index/seqno/RetentionLeaseIT.java

@@ -36,7 +36,6 @@
 import org.elasticsearch.indices.recovery.PeerRecoveryTargetService;
 import org.elasticsearch.plugins.Plugin;
 import org.elasticsearch.test.ESIntegTestCase;
-import org.elasticsearch.test.junit.annotations.TestLogging;
 import org.elasticsearch.test.transport.MockTransportService;
 import org.elasticsearch.threadpool.ThreadPool;
 import org.elasticsearch.transport.TransportService;
@@ -359,7 +358,6 @@ public void testRetentionLeasesBackgroundSyncWithSoftDeletesDisabled() throws Ex
         assertFalse("retention leases background sync must be a noop if soft deletes is disabled", backgroundSyncRequestSent.get());
     }
 
-    @TestLogging(value = "org.elasticsearch.indices.recovery:trace")
     public void testRetentionLeasesSyncOnRecovery() throws Exception {
         final int numberOfReplicas = 2 - scaledRandomIntBetween(0, 2);
         internalCluster().ensureAtLeastNumDataNodes(1 + numberOfReplicas);
@@ -396,7 +394,6 @@ public void testRetentionLeasesSyncOnRecovery() throws Exception {
             final ActionListener<ReplicationResponse> listener = ActionListener.wrap(r -> latch.countDown(), e -> fail(e.toString()));
             currentRetentionLeases.put(id, primary.addRetentionLease(id, retainingSequenceNumber, source, listener));
             latch.await();
-            currentRetentionLeases.put(id, primary.renewRetentionLease(id, retainingSequenceNumber, source));
         }
         logger.info("finished adding [{}] retention leases", length);