Remove empty line
diff --git a/core/kg/rpc/user_service.go b/core/kg/rpc/user_service.go
index c0ddd21..ee385cb 100644
--- a/core/kg/rpc/user_service.go
+++ b/core/kg/rpc/user_service.go
@@ -18,7 +18,6 @@
 	s := &userService{
 		app: app,
 	}
-
 	return s
 }