Remove failing tests that are gated on inactive work

These tests were committed by Glenn Adams when he was actively working
on CSS3 line-break. The patch that made these tests pass was rolled out
due to a perf regression in February, but Glenn is no longer working
on the patch. Removing the tests since there's not currently a path
forward.

Review URL: https://codereview.chromium.org/26379002

git-svn-id: svn://svn.chromium.org/blink/trunk@161554 bbb929c8-8fbe-4397-9dbb-9b2b20218538