This is a cleanup CL that stemmed from the CompressedSigned one
https://chromium-review.googlesource.com/c/v8/v8/+/1547859

Bug: v8:8977, v8:7703
Change-Id: Icd217c43cc3430579dd79387d680205ef4440962
Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1569428
Auto-Submit: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60874}