fast/text/international/hindi-spacing.html is no longer flaky

Remove fast/text/international/hindi-spacing.html from TextExpectations
as it is no longer flaky, fixed by r159122.

BUG=247575
TBR=ojan@chromium.org

Review URL: https://codereview.chromium.org/26637002

git-svn-id: svn://svn.chromium.org/blink/trunk@159182 bbb929c8-8fbe-4397-9dbb-9b2b20218538