clean up

Author: samxbr

server/src/main/java/org/elasticsearch/health/HealthPeriodicLogger.java

@@ -42,7 +42,6 @@
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
-import java.util.Optional;
 import java.util.Set;
 import java.util.concurrent.Semaphore;
 import java.util.concurrent.TimeUnit;
@@ -63,10 +62,6 @@ public class HealthPeriodicLogger extends AbstractLifecycleComponent implements
     public static final String HEALTH_FIELD_PREFIX = "elasticsearch.health";
     public static final String MESSAGE_FIELD = "message";
 
-    // duplicated from SlmHealthIndicatorService since x-pack not accessible
-    private static final String SLM_HEALTH_INDICATOR_SERVICE_NAME = "slm";
-    private static final String SLM_HEALTH_INDICATOR_SERVICE_IMPACT_ID_MISSING_SNAPSHOT = "missing_snapshot";
-
     /**
      * Valid modes of output for this logger
      */