docs(demo-frontend-service): stop using addSpanProcessor

Author: pichlermarc

content/en/docs/demo/services/frontend.md

@@ -178,10 +178,9 @@ const FrontendTracer = async () => {
     resource: new Resource({
       [SEMRESATTRS_SERVICE_NAME]: process.env.NEXT_PUBLIC_OTEL_SERVICE_NAME,
     }),
+    spanProcessors: [new SimpleSpanProcessor(new OTLPTraceExporter())],
   });
 
-  provider.addSpanProcessor(new SimpleSpanProcessor(new OTLPTraceExporter()));
-
   const contextManager = new ZoneContextManager();
 
   provider.register({