[ios] Convert CHECK(..., base::NotFatalUntil::M132) to CHECK(...)

The current version of stable is M-134, so those CHECK(...) are
already unconditional, so remove the base::NotFatalUntil::M132.

Bug: none
Change-Id: I524b6e3567fee24b09b857022d29bb6878fc286a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6440932
Commit-Queue: Justin Donnelly <jdonnelly@chromium.org>
Auto-Submit: Sylvain Defresne <sdefresne@chromium.org>
Reviewed-by: Justin Donnelly <jdonnelly@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1445276}