Coverity: Remove a check that can never be true.  result is unsigned, so it can't be less than 0.
Coverity: Remove a check that can never be true.  result is unsigned, so it can't be less than 0.

CID=577
BUG=none
TEST=none
Review URL: http://codereview.chromium.org/249049

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@27678 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser