Merged 21a471f2d8fc8f4dfbb0230e984c62c6fa7ab1b6

Revert "Reland "[regalloc] Introduce deferred fixed ranges""

R=sigurds@chromium.org

Change-Id: I32853786f65edb6eda7654df60e91cf3b572db3b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1532330
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/7.5.84@{#2}
Cr-Branched-From: d54644de302a67ce5ff4216081c7bd00f7ce25fa-refs/heads/master@{#60375}