tree d840cea87c35cac5d9759897b77904ffe4b31eb9
parent 6f2138e75f0286375171ba56d1a8813178209590
author Zhiyi Zhang <zhiyi@cs.ucla.edu> 1603244002 -0700
committer Zhiyi Zhang <zhiyi@cs.ucla.edu> 1603244002 -0700

further clean up

Change-Id: I79a541209d6fd852aaf0f4e8f6fef3f61682a5a9