remove log message

bubble-server/src/main/java/bubble/resources/device/FlexRoutersResource.java

@@ -46,7 +46,6 @@ public class FlexRoutersResource extends AccountOwnedResource<FlexRouter, FlexRo
             throw invalidEx("err.token.required");
         }
 
-        log.info("setReferences: FlexRouter=\n"+json(router)+"\n");
         return super.setReferences(ctx, req, caller, router);
     }