Disabled tracing and stats.

frameworks/Scala/finch/src/main/scala/WebServer.scala

@@ -6,7 +6,8 @@ import io.finch._
 
 import com.twitter.finagle.Service
 import com.twitter.finagle.Http
-
+import com.twitter.finagle.stats.NullStatsReceiver
+import com.twitter.finagle.tracing.NullTracer
 import com.twitter.util.Await
 
 import io.circe._
@@ -34,6 +35,8 @@ object WebServer extends App {
 
   Await.ready(Http.server
     .withCompressionLevel(0)
+    .withStatsReceiver(NullStatsReceiver)
+    .withTracer(NullTracer)
     .serve(":9000", (json :+: plaintext).toService)
   )
 }