Revert "Add WPT coverage of Sec-CH-Width"

This reverts commit 4c824962ce299958d6ca2efccfac5bb8761b8756.

Reason for revert: Failing on chromium/ci/WebKit Linux MSAN bot.

Bug: 340364700

Original change's description:
> Add WPT coverage of Sec-CH-Width
>
> This patch adds WPT coverage of Sec-CH-Width:
>   https://wicg.github.io/responsive-image-client-hints/#sec-ch-width
>
> Bug: 335630145
> Change-Id: I329d39c8d0d259e9226e64468a083513c555322b
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5523418
> Reviewed-by: Traian Captan <tcaptan@chromium.org>
> Commit-Queue: Philip Rogers <pdr@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1300292}

Bug: 335630145
Change-Id: Idd61c07047bc75818c731e773c1119eb03078c82
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5535073
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Traian Captan <tcaptan@chromium.org>
Commit-Queue: Tsuyoshi Horo <horo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1300416}