... as they are no longer needed.

Bug: v8:8794, v8:8562
Change-Id: Ib5d87fce9834839410b0dffce95b4a8ae4f946cc
Reviewed-on: https://chromium-review.googlesource.com/c/1460456Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59457}