Guo-wei Shieh 53eee43e78 Address the comment from 1367553002.
Remove duplication introduced by
https://codereview.webrtc.org/1367553002

BUG=webrtc:5030
TBR=juberti@webrtc.org

Review URL: https://codereview.webrtc.org/1360203003 .

Cr-Commit-Position: refs/heads/master@{#10039}
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