MINOR: Remove Dead Code in QueryCache (#36147)

Author: original-brownbear

server/src/main/java/org/elasticsearch/index/cache/query/DisabledQueryCache.java

@@ -23,7 +23,6 @@
 import org.apache.lucene.search.Weight;
 import org.elasticsearch.index.AbstractIndexComponent;
 import org.elasticsearch.index.IndexSettings;
-import org.elasticsearch.index.cache.query.QueryCache;
 
 public class DisabledQueryCache extends AbstractIndexComponent implements QueryCache {
 

server/src/main/java/org/elasticsearch/index/cache/query/IndexQueryCache.java

@@ -24,7 +24,6 @@
 import org.elasticsearch.ElasticsearchException;
 import org.elasticsearch.index.AbstractIndexComponent;
 import org.elasticsearch.index.IndexSettings;
-import org.elasticsearch.index.cache.query.QueryCache;
 import org.elasticsearch.indices.IndicesQueryCache;
 
 /**

server/src/main/java/org/elasticsearch/index/cache/query/QueryCache.java

@@ -25,15 +25,5 @@
 
 public interface QueryCache extends IndexComponent, Closeable, org.apache.lucene.search.QueryCache {
 
-    class EntriesStats {
-        public final long sizeInBytes;
-        public final long count;
-
-        public EntriesStats(long sizeInBytes, long count) {
-            this.sizeInBytes = sizeInBytes;
-            this.count = count;
-        }
-    }
-
     void clear(String reason);
 }