- Added TFJ builtins for S.p.{anchor, big, blink, bold, fontcolor,
      fontsize, fixed, italics, link, small, strike, sub, sup}
  - Removed functionality from string.js

Bug: v8:5049
Change-Id: I3a91b52eaceef5c47bb55ed62780d72ef1e802e9
Reviewed-on: https://chromium-review.googlesource.com/666487
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48056}