TierUpCheck and UpdateInterruptBudget were only used by Turboprop
(likewise feedback_cell_node).

Bug: v8:12552
Change-Id: Ic73d44a5734e183bc1a2eda58cdf85163220e4d9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3463954
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79116}