Revert "[text-decorations] Fix a crash for ::first-line"

This reverts commit c9d2271396f178e2c0747f2ef2ac727d8a02f9d1.

Reason for revert: Breaks linux-autofill-captured-sites-rel
https://issues.chromium.org/issues/345562934#comment7

Original change's description:
> [text-decorations] Fix a crash for `::first-line`
>
> This patch fixes a crash when `text-decoration` is applied to
> `::first-line`.
>
> Fixed: 345562934
> Change-Id: If26564ca3dcb913236771ef4a634928485b68eca
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5677308
> Reviewed-by: Kent Tamura <tkent@chromium.org>
> Auto-Submit: Koji Ishii <kojii@chromium.org>
> Commit-Queue: Koji Ishii <kojii@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1323270}

Change-Id: I11449659ffa83389198c365cee7600e6ba61065d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5678822
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1323327}