code cleanup: rm unused constant and some imports
diff --git a/slider-core/src/main/java/org/apache/slider/server/appmaster/web/WebAppApiImpl.java b/slider-core/src/main/java/org/apache/slider/server/appmaster/web/WebAppApiImpl.java
index cacdb3a..3b47ed1 100644
--- a/slider-core/src/main/java/org/apache/slider/server/appmaster/web/WebAppApiImpl.java
+++ b/slider-core/src/main/java/org/apache/slider/server/appmaster/web/WebAppApiImpl.java
@@ -18,8 +18,6 @@
import org.apache.hadoop.registry.client.api.RegistryOperations;
import org.apache.slider.api.SliderClusterProtocol;
-import org.apache.slider.common.SliderKeys;
-import org.apache.slider.providers.ProviderRole;
import org.apache.slider.providers.ProviderService;
import org.apache.slider.server.appmaster.state.RoleStatus;
import org.apache.slider.server.appmaster.state.StateAccessForProviders;
@@ -28,10 +26,8 @@
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-import java.util.HashMap;
import java.util.List;
import java.util.Map;
-import java.util.Map.Entry;
import java.util.TreeMap;
import static com.google.common.base.Preconditions.checkNotNull;
@@ -42,8 +38,6 @@
public class WebAppApiImpl implements WebAppApi {
private static final Logger log = LoggerFactory.getLogger(WebAppApiImpl.class);
- protected static final ProviderRole AM_ROLE_NAME = new ProviderRole("Slider Application Master", SliderKeys.ROLE_AM_PRIORITY_INDEX);
-
protected final SliderClusterProtocol clusterProto;
protected final StateAccessForProviders appState;
protected final ProviderService provider;
