Remove catchall silents from prod code (#27432)

* WIP

* Remove catch all silent annocations from prod code

akka-cluster-metrics/src/main/scala/akka/cluster/metrics/ClusterMetricsCollector.scala

@@ -94,7 +94,7 @@ trait ClusterMetricsEvent
 final case class ClusterMetricsChanged(nodeMetrics: Set[NodeMetrics]) extends ClusterMetricsEvent {
 
   /** Java API */
-  @silent
+  @silent("deprecated")
   def getNodeMetrics: java.lang.Iterable[NodeMetrics] =
     scala.collection.JavaConverters.asJavaIterableConverter(nodeMetrics).asJava
 }

akka-cluster-metrics/src/main/scala/akka/cluster/metrics/ClusterMetricsRouting.scala

@@ -419,7 +419,7 @@ object MetricsSelector {
 /**
  * A MetricsSelector is responsible for producing weights from the node metrics.
  */
-@silent
+@silent("@SerialVersionUID has no effect")
 @SerialVersionUID(1L)
 trait MetricsSelector extends Serializable {
 
@@ -433,7 +433,7 @@ trait MetricsSelector extends Serializable {
  * A MetricsSelector producing weights from remaining capacity.
  * The weights are typically proportional to the remaining capacity.
  */
-@silent
+@silent("deprecated")
 @SerialVersionUID(1L)
 abstract class CapacityMetricsSelector extends MetricsSelector {
 

akka-cluster-metrics/src/main/scala/akka/cluster/metrics/Metric.scala

@@ -323,7 +323,7 @@ final case class NodeMetrics(address: Address, timestamp: Long, metrics: Set[Met
   /**
    * Java API
    */
-  @silent
+  @silent("deprecated")
   def getMetrics: java.lang.Iterable[Metric] =
     scala.collection.JavaConverters.asJavaIterableConverter(metrics).asJava