Fix traceRenderer, Bukkit.getScheduler

BauSystem_15/src/de/steamwar/bausystem/tracer/TNTTracer_15.java

@@ -45,7 +45,7 @@ class TNTTracer_15 {
                 synchronizer.notifyAll();
             }
         }, 1, 20);
-        Thread traceRenderer = new Thread(() -> {
+        Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
             while (true) {
                 synchronized (synchronizer) {
                     try {
@@ -57,9 +57,6 @@ class TNTTracer_15 {
                 run();
             }
         });
-        traceRenderer.setDaemon(true);
-        traceRenderer.setName("Trace Renderer");
-        traceRenderer.start();
 
         TNTTracer_15.tracerCallback = tracerCallback;
         TNTTracer_15.tracerCallbackUpdatePoints = tracerCallbackUpdatePoints;