Revert "[permissions] Fix chip UI interaction with the omnibox"

This reverts commit 4c7fb715ec23e5ccfda2ceb61ee9ae9450f4a889.

Reason for revert: Newly added tests are failing on https://ci.chromium.org/ui/p/chrome/builders/ci/linux-chromeos-chrome/17754/overview

Original change's description:
> [permissions] Fix chip UI interaction with the omnibox
>
> Fix chip offsetting the location bar icon and fix permission prompt
> overlapping with omnibox popup.
>
> Bug: 1239612
> Change-Id: I46fda650f763bd8faee799cd563f3459e683de9a
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3093993
> Commit-Queue: Olesia Marukhno <olesiamarukhno@google.com>
> Reviewed-by: Bret Sepulveda <bsep@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#927301}

Bug: 1239612
Change-Id: Iad355861398ce8083dc4873e3098a571ca07d5dc
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3200115
Auto-Submit: Marijn Kruisselbrink <mek@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Marijn Kruisselbrink <mek@chromium.org>
Owners-Override: Marijn Kruisselbrink <mek@chromium.org>
Cr-Commit-Position: refs/heads/main@{#927424}