Drive-by: cleanup accessor declaration and definition macros.

Bug: v8:11880, v8:12596
Cq-Include-Trybots: luci.v8.try:v8_linux64_tsan_rel_ng
Change-Id: Ia04a7f21d911386e610f963f55cbc1d310b2f442
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3439917Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78972}