Cleanup: Remove an unneed variable in the print preview Javascript code.
Cleanup: Remove an unneed variable in the print preview Javascript code.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/6883027

git-svn-id: http://src.chromium.org/svn/trunk/src@82021 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 970e660f6022d1a7f08ea649c381794b3cac72a3
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser