This reverts commit 1bf6e735.

Reason for revert: Breaks nosnap builds:
https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20nosnap%20-%20debug/21209

Original change's description:
> [embedded] Share a single RelocInfo between all trampolines
> 
> Creates a single RelocInfo to be used by all builtin trampolines and
> stores it as a root. All trampolines then substitute this for their
> trampoline at generation time with DCHECKs to make sure it is
> identical.
> 
> Also forces all non-trampoline RelocInfo ByteArrays for builtins to be
> generated into RO_SPACE.
> 
> On x64, this results in the OLD_SPACE part of the startup snapshot
> decreasing in size from 166096 to 131248 (-34848) bytes and RO_SPACE
> (in the read-only snapshot) increasing from 31176 to 31248 (+72) bytes.
> 
> Bug: v8:8295
> Change-Id: I69f4a899b738f2023ed42501c2b9797d34305b06
> Reviewed-on: https://chromium-review.googlesource.com/c/1276468
> Commit-Queue: Dan Elphick <delphick@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#56811}

TBR=ulan@chromium.org,jgruber@chromium.org,delphick@chromium.org

Change-Id: I57239af6f3fc9c403977da0561b8fe32c1a758e7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8295
Reviewed-on: https://chromium-review.googlesource.com/c/1291070Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56814}