Remove legalese about autoupdate from install dialog.
Remove legalese about autoupdate from install dialog.

BUG=22962
TEST=Install an extension. Install dialog warning should not include any warnings about autoupdating.

Review URL: http://codereview.chromium.org/362002

git-svn-id: http://src.chromium.org/svn/trunk/src@31058 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: b93b40de64d1c991e4347cf7d4a4dc55d862d872
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