Don't verify evictions in testFilterCacheStats (#42091)

If a background merge and refresh happens after a search but before a
stats query, then evictions will be non-zero.

Closes #32506

server/src/test/java/org/elasticsearch/indices/stats/IndexStatsIT.java

@@ -62,7 +62,6 @@
 import org.elasticsearch.test.ESIntegTestCase.ClusterScope;
 import org.elasticsearch.test.ESIntegTestCase.Scope;
 import org.elasticsearch.test.InternalSettingsPlugin;
-import org.elasticsearch.test.junit.annotations.TestLogging;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -1008,8 +1007,6 @@ private void assertCumulativeQueryCacheStats(IndicesStatsResponse response) {
         assertEquals(total, shardTotal);
     }
 
-    @TestLogging("_root:DEBUG")  // this fails at a very low rate on CI: https://github.com/elastic/elasticsearch/issues/32506
-    @AwaitsFix( bugUrl = "https://github.com/elastic/elasticsearch/issues/32506")
     public void testFilterCacheStats() throws Exception {
         Settings settings = Settings.builder().put(indexSettings()).put("number_of_replicas", 0).build();
         assertAcked(prepareCreate("index").setSettings(settings).get());
@@ -1034,7 +1031,6 @@ public void testFilterCacheStats() throws Exception {
             IndicesStatsResponse stats = client().admin().indices().prepareStats("index").setQueryCache(true).get();
             assertCumulativeQueryCacheStats(stats);
             assertThat(stats.getTotal().queryCache.getHitCount(), equalTo(0L));
-            assertThat(stats.getTotal().queryCache.getEvictions(), equalTo(0L));
             assertThat(stats.getTotal().queryCache.getMissCount(), greaterThan(0L));
             assertThat(stats.getTotal().queryCache.getCacheSize(), greaterThan(0L));
         });
@@ -1045,7 +1041,6 @@ public void testFilterCacheStats() throws Exception {
             IndicesStatsResponse stats = client().admin().indices().prepareStats("index").setQueryCache(true).get();
             assertCumulativeQueryCacheStats(stats);
             assertThat(stats.getTotal().queryCache.getHitCount(), greaterThan(0L));
-            assertThat(stats.getTotal().queryCache.getEvictions(), equalTo(0L));
             assertThat(stats.getTotal().queryCache.getMissCount(), greaterThan(0L));
             assertThat(stats.getTotal().queryCache.getCacheSize(), greaterThan(0L));
         });