Revert of [ic] Don't pollute per-map code cache with CompareIC stubs. (patchset #1 id:20001 of https://codereview.chromium.org/2053583002/ )

Reason for revert:
[Sheriff] Speculative revert. Tail call test timing out:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/10014

Original issue's description:
> [ic] Don't pollute per-map code cache with CompareIC stubs.
>
> Given that
> 1) because of code flags mismatch we are not able to fetch any CompareIC stub that was put into the cache (we put MONOMORPHIC stubs but query only UNINITIALIZED ones),
> 2) it was already broken for a couple of years,
> 3) we will not need to cache any stub once CompareIC becomes vector-based.
>
> Committed: https://crrev.com/172ddf4250e5c4b7510ce352631fb9f8eb291940
> Cr-Commit-Position: refs/heads/master@{#36854}

TBR=verwaest@chromium.org,jkummerow@chromium.org,ishell@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2055793002
Cr-Commit-Position: refs/heads/master@{#36856}