Revert "mute new mediaTrack if pub is muted"

This reverts commit 8a68810.

Author: hiroshihorie

lib/src/participant/remote_participant.dart

@@ -88,10 +88,6 @@ class RemoteParticipant extends Participant {
       );
     }
 
-    // apply current muted state of publication
-    logger.fine('RemoteTrackPublication is muted: ${pub.muted}');
-    mediaTrack.enabled = !pub.muted;
-
     // create Track
     final Track track;
     if (pub.kind == lk_models.TrackType.AUDIO) {