Remove unused imports

core/src/test/java/org/elasticsearch/search/stats/SearchStatsTests.java

@@ -21,8 +21,6 @@ package org.elasticsearch.search.stats;
 
 import org.elasticsearch.action.admin.cluster.node.stats.NodeStats;
 import org.elasticsearch.action.admin.cluster.node.stats.NodesStatsResponse;
-import org.elasticsearch.action.admin.cluster.stats.ClusterStatsRequest;
-import org.elasticsearch.action.admin.cluster.stats.ClusterStatsRequestBuilder;
 import org.elasticsearch.action.admin.indices.stats.IndicesStatsResponse;
 import org.elasticsearch.action.search.SearchResponse;
 import org.elasticsearch.action.search.SearchType;
@@ -35,14 +33,11 @@ import org.elasticsearch.common.unit.TimeValue;
 import org.elasticsearch.index.query.QueryBuilders;
 import org.elasticsearch.index.search.stats.SearchStats.Stats;
 import org.elasticsearch.script.Script;
-import org.elasticsearch.search.SearchHit;
 import org.elasticsearch.test.ElasticsearchIntegrationTest;
 import org.junit.Test;
 
 import java.util.HashSet;
-import java.util.Iterator;
 import java.util.Set;
-import java.util.concurrent.TimeUnit;
 
 import static org.elasticsearch.cluster.metadata.IndexMetaData.SETTING_NUMBER_OF_REPLICAS;
 import static org.elasticsearch.cluster.metadata.IndexMetaData.SETTING_NUMBER_OF_SHARDS;