1 files changed, 0 insertions, 2 deletions
diff --git a/kamon-core/src/main/scala/kamon/instrumentation/akka/ActorCellInstrumentation.scala b/kamon-core/src/main/scala/kamon/instrumentation/akka/ActorCellInstrumentation.scala
index 5fce4555..446bc487 100644
--- a/kamon-core/src/main/scala/kamon/instrumentation/akka/ActorCellInstrumentation.scala
+++ b/kamon-core/src/main/scala/kamon/instrumentation/akka/ActorCellInstrumentation.scala
@@ -82,7 +82,6 @@ class ActorCellInstrumentation {
     val cellWithMetrics = cell.asInstanceOf[ActorCellMetrics]
 
     cellWithMetrics.actorMetricsRecorder.map { p ⇒
-      cellWithMetrics.mailboxSizeCollectorCancellable.cancel()
       Kamon(Metrics)(cell.system).unregister(cellWithMetrics.metricIdentity)
     }
   }
@@ -103,7 +102,6 @@ class ActorCellInstrumentation {
 trait ActorCellMetrics {
   var metricIdentity: ActorMetrics = _
   var actorMetricsRecorder: Option[ActorMetricsRecorder] = _
-  var mailboxSizeCollectorCancellable: Cancellable = _
 }
 
 @Aspect