How to remove physics from Cocos2d-JS

Hi all,I don’t want to use physics in my project,but it includes chipmunk by default.In Cocos2d-x,I can comment the definition of CC_USE_PHYSICS in ccConfig.h to disable it,but I get errors in cocos2d-js.How can i do to remove the chipmunk in cocos2d-js?:;qst