This check shouldn't have been there. Even with lazy feedback allocation
we still transition to pre-monomorphic from uninitialized. We could
remove pre-monomorphic states with lazy-feedback allocation but that
requires changes at several other places.

Change-Id: I8f878a83f0fe3200eb530a34a74811639dcdc153
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1634920Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62138}