This reverts commit ef62cd06.

Reason for revert: Fails mjsunit/wasm/grow-memory (https://logs.chromium.org/logs/v8/buildbucket/cr-buildbucket/8831118281610576833/+/u/Check/grow-memory)

Original change's description:
> [heap] Remove executable_memory_ from release code
>
> The map is only used to check invariants.
>
> Bug: v8:12054
> Change-Id: I7d067cca801c9b6104efb22a26cf27f1f62920c5
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3268286
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Commit-Queue: Victor Gomes <victorgomes@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#77766}

Bug: v8:12054
Change-Id: I95af58404719855664a128047ed32e8022dd5dd3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3268300
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Owners-Override: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77767}