SOLR-13702: Some components register twice their metric names (#834)

(cherry picked from commit 0aa3654802)

solr/CHANGES.txt

@@ -79,6 +79,8 @@ Improvements
 
 * SOLR-13677: All Metrics Gauges should be unregistered by the objects that registered them (noble)
 
+* SOLR-13702: Some components register twice their metric names (janhoy)
+
 Bug Fixes
 ----------------------
 

solr/core/src/java/org/apache/solr/security/AuditLoggerPlugin.java

@@ -257,7 +257,6 @@ public abstract class AuditLoggerPlugin implements Closeable, Runnable, SolrInfo
       queuedTime = manager.timer(this, registryName, "queuedTime", getCategory().toString(), scope, className);
     }
     manager.registerGauge(this, registryName, () -> async, "async", true, "async", getCategory().toString(), scope, className);
-    metricNames.addAll(Arrays.asList("errors", "logged", "requestTimes", "totalTime", "queueCapacity", "queueSize", "async"));
   }
   
   @Override

solr/core/src/java/org/apache/solr/security/AuthenticationPlugin.java

@@ -157,8 +157,6 @@ public abstract class AuthenticationPlugin implements SolrInfoBean, SolrMetricPr
     numMissingCredentials = this.metrics.counter(this,  "failMissingCredentials",getCategory().toString());
     requestTimes = this.metrics.timer(this,"requestTimes", getCategory().toString());
     totalTime = this.metrics.counter(this,"totalTime", getCategory().toString());
-    metricNames.addAll(Arrays.asList("errors", "requests", "authenticated", "passThrough",
-        "failWrongCredentials", "failMissingCredentials", "requestTimes", "totalTime"));
   }
 
   @Override