remove unused code
remove unused code

szxw/galaxy,May2016/galaxy,ontologyzsy/galaxy,sdgdsffdsfff/galaxy,bluebore/galaxy,szxw/galaxy,sdgdsffdsfff/galaxy,bluebore/galaxy,szxw/galaxy,taotaowill/galaxy,imotai/galaxy,baidu/galaxy,Kai-Zhang/galaxy,szxw/galaxy,imotai/galaxy,ontologyzsy/galaxy,bluebore/galaxy,ontologyzsy/galaxy,szxw/galaxy,sdgdsffdsfff/galaxy,imotai/galaxy,imotai/galaxy,taotaowill/galaxy,sdgdsffdsfff/galaxy,ontologyzsy/galaxy,ontologyzsy/galaxy,baidu/galaxy,Kai-Zhang/galaxy,May2016/galaxy,May2016/galaxy,bluebore/galaxy,imotai/galaxy,Kai-Zhang/galaxy,baidu/galaxy,sdgdsffdsfff/galaxy,bluebore/galaxy,taotaowill/galaxy