Delete a variable that's no longer used.
Delete a variable that's no longer used.

R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/18143003

git-svn-id: e7e1075985beda50ea81ac4472467b4f6e91fc78@1660 78cadc50-ecff-11dd-a971-7dbc132099af

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