[VOL-3285] Resolving statis code analysis warnings

Change-Id: Iaddaae92c649fd27ce0a63f1786af594667c9e8e
diff --git a/internal/bbsim/api/grpc_api_server.go b/internal/bbsim/api/grpc_api_server.go
index c17c6a9..72f999e 100644
--- a/internal/bbsim/api/grpc_api_server.go
+++ b/internal/bbsim/api/grpc_api_server.go
@@ -122,7 +122,7 @@
 func (s BBSimServer) RebootOlt(ctx context.Context, req *bbsim.Empty) (*bbsim.Response, error) {
 	res := &bbsim.Response{}
 	o := devices.GetOLT()
-	go o.RestartOLT()
+	go func() { _ = o.RestartOLT() }()
 	res.StatusCode = int32(codes.OK)
 	res.Message = fmt.Sprintf("OLT restart triggered.")
 	return res, nil