Revert "See also webkit.org/b/113415"

This reverts commit 4a9f9ac3a1106f937d36f9322bb52da903ca60a6.

That patch broke a bunch of layout tests on Mac, many of them the
particular ones for which it provided expectations. I'm guessing
the right thing is to reland with [ NeedsRebaseline ] lines in
TestExpectations and let the auto-rebaseline bot do the job.

BUG=320743
TBR=ojan@chromium.org,robhogan@gmail.com

Review URL: https://codereview.chromium.org/99903006

git-svn-id: svn://svn.chromium.org/blink/trunk@163739 bbb929c8-8fbe-4397-9dbb-9b2b20218538