Remove Win7 Debug CRASH expectations post skia roll

Now that the skia fix is in these tests no longer trigger an ASSERT
on windows. Remove the CRASH lines accordingly.

BUG=304968
TBR=jsbell@chromium.org

Review URL: https://codereview.chromium.org/26685005

git-svn-id: svn://svn.chromium.org/blink/trunk@159339 bbb929c8-8fbe-4397-9dbb-9b2b20218538