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

[chromium-wpt-export-bot]

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}