remove stack trace.

Change-Id: If5273f377670f0f39a8059ccd0ac98dde29394b3
diff --git a/services/wspr/internal/rpc/server/server.go b/services/wspr/internal/rpc/server/server.go
index 850e742..624d76c 100644
--- a/services/wspr/internal/rpc/server/server.go
+++ b/services/wspr/internal/rpc/server/server.go
@@ -9,7 +9,6 @@
 import (
 	"encoding/json"
 	"fmt"
-	"runtime"
 	"sync"
 	"time"
 
@@ -804,12 +803,6 @@
 	s.outstandingRequestLock.Unlock()
 	s.serverStateLock.Unlock()
 	vlog.VI(0).Infof("Calling stop")
-	go func() {
-		<-time.After(5 * time.Second)
-		buf := make([]byte, 1<<16)
-		runtime.Stack(buf, true)
-		vlog.VI(0).Infof("stack is %s", buf)
-	}()
 	s.server.Stop()
 
 	vlog.VI(0).Infof("Finishing stop")