Hide player notification "when" time

It is useless to see how much time ago a player notification was created

app/src/main/java/org/schabi/newpipe/player/NotificationUtil.java

@@ -116,10 +116,11 @@ public final class NotificationUtil {
                     .setMediaSession(player.mediaSessionManager.getSessionToken())
                     .setShowActionsInCompactView(compactSlots))
                 .setPriority(NotificationCompat.PRIORITY_HIGH)
-                .setSmallIcon(R.drawable.ic_newpipe_triangle_white)
                 .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
-                .setColor(ContextCompat.getColor(player.context, R.color.gray))
                 .setCategory(NotificationCompat.CATEGORY_TRANSPORT)
+                .setShowWhen(false)
+                .setSmallIcon(R.drawable.ic_newpipe_triangle_white)
+                .setColor(ContextCompat.getColor(player.context, R.color.gray))
                 .setDeleteIntent(PendingIntent.getBroadcast(player.context, NOTIFICATION_ID,
                         new Intent(ACTION_CLOSE), FLAG_UPDATE_CURRENT));