remove unused declarations (#94610)

Author: idegtiarenko

server/src/main/java/org/elasticsearch/common/settings/KeyStoreWrapper.java

@@ -76,12 +76,6 @@ public class KeyStoreWrapper implements SecureSettings {
 
     public static final String PROMPT = "Enter password for the elasticsearch keystore : ";
 
-    /** An identifier for the type of data that may be stored in a keystore entry. */
-    private enum EntryType {
-        STRING,
-        FILE
-    }
-
     /** An entry in the keystore. The bytes are opaque and interpreted based on the entry type. */
     private static class Entry implements Writeable {
         final byte[] bytes;

server/src/main/java/org/elasticsearch/common/util/concurrent/PrioritizedEsThreadPoolExecutor.java

@@ -32,7 +32,6 @@
  */
 public class PrioritizedEsThreadPoolExecutor extends EsThreadPoolExecutor {
 
-    private static final TimeValue NO_WAIT_TIME_VALUE = TimeValue.timeValueMillis(0);
     private final AtomicLong insertionOrder = new AtomicLong();
     private final Queue<Runnable> current = ConcurrentCollections.newQueue();
     private final ScheduledExecutorService timer;

server/src/main/java/org/elasticsearch/index/shard/ShardSplittingQuery.java

@@ -230,7 +230,6 @@ private final class Visitor extends StoredFieldVisitor {
         final LeafReader leafReader;
         final StoredFields storedFields;
         private int leftToVisit = 2;
-        private final BytesRef spare = new BytesRef();
         private String routing;
         private String id;
 

server/src/main/java/org/elasticsearch/index/translog/TruncateTranslogAction.java

@@ -27,7 +27,6 @@
 import org.elasticsearch.index.seqno.SequenceNumbers;
 import org.elasticsearch.index.shard.RemoveCorruptedShardDataCommand;
 import org.elasticsearch.index.shard.ShardPath;
-import org.elasticsearch.xcontent.NamedXContentRegistry;
 
 import java.io.IOException;
 import java.nio.channels.FileChannel;
@@ -46,11 +45,6 @@
 public class TruncateTranslogAction {
 
     protected static final Logger logger = LogManager.getLogger(TruncateTranslogAction.class);
-    private final NamedXContentRegistry namedXContentRegistry;
-
-    public TruncateTranslogAction(NamedXContentRegistry namedXContentRegistry) {
-        this.namedXContentRegistry = namedXContentRegistry;
-    }
 
     public static Tuple<RemoveCorruptedShardDataCommand.CleanStatus, String> getCleanStatus(
         ShardPath shardPath,

server/src/main/java/org/elasticsearch/tasks/TaskManager.java

@@ -30,7 +30,6 @@
 import org.elasticsearch.core.Nullable;
 import org.elasticsearch.core.Releasable;
 import org.elasticsearch.core.Releasables;
-import org.elasticsearch.core.TimeValue;
 import org.elasticsearch.threadpool.ThreadPool;
 import org.elasticsearch.tracing.Tracer;
 import org.elasticsearch.transport.TaskTransportChannel;
@@ -58,7 +57,6 @@
 import java.util.function.Consumer;
 
 import static org.elasticsearch.core.Strings.format;
-import static org.elasticsearch.core.TimeValue.timeValueMillis;
 import static org.elasticsearch.http.HttpTransportSettings.SETTING_HTTP_MAX_HEADER_SIZE;
 
 /**
@@ -68,8 +66,6 @@ public class TaskManager implements ClusterStateApplier {
 
     private static final Logger logger = LogManager.getLogger(TaskManager.class);
 
-    private static final TimeValue WAIT_FOR_COMPLETION_POLL = timeValueMillis(100);
-
     /** Rest headers that are copied to the task */
     private final String[] taskHeaders;
     private final ThreadPool threadPool;

server/src/main/java/org/elasticsearch/transport/RemoteClusterAware.java

@@ -33,7 +33,6 @@ public abstract class RemoteClusterAware {
     public static final String LOCAL_CLUSTER_GROUP_KEY = "";
 
     protected final Settings settings;
-    private final ClusterNameExpressionResolver clusterNameResolver;
     private final String nodeName;
     private final boolean isRemoteClusterClientEnabled;
 
@@ -43,7 +42,6 @@ public abstract class RemoteClusterAware {
      */
     protected RemoteClusterAware(Settings settings) {
         this.settings = settings;
-        this.clusterNameResolver = new ClusterNameExpressionResolver();
         this.nodeName = Node.NODE_NAME_SETTING.get(settings);
         this.isRemoteClusterClientEnabled = DiscoveryNode.isRemoteClusterClient(settings);
     }