This reverts commit 9c3d4b35.

Reason for revert: This is not the right fix (see bug).

Original change's description:
> [super IC] Fix receiver vs lookup start object confusion
>
> Bug: v8:9237,chromium:1308360
> Change-Id: I11e3c14a6cecb9d88a834711fb6252191494d5f7
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3545172
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Commit-Queue: Marja Hölttä <marja@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#79571}

Bug: v8:9237,chromium:1308360
Change-Id: I0efa6ab561482ffc323b63500acfeb80598f3e7c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3548896
Auto-Submit: Marja Hölttä <marja@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79604}