Remove getLastUsedRegularProfile from /suggestions/* files.

Bug: 40254448
Change-Id: I07bd2e485cfe66194f69a9167e7b86bbdb6a7a0f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5406521


Reviewed-by: Sky Malice <skym@chromium.org>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Commit-Queue: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1280238}