Revert changes made to fix menu mouse hover scroll bug (visual flickering)

This code has caused a few regressions (originally implemented to fix crbug/1337248).
Further investigation required for a more complete solution.

Bug: 1409297
Change-Id: I780a802262f870f4c7059b1ee16e7bc60beb6992
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4321750


Reviewed-by: Allen Bauer <kylixrd@chromium.org>
Commit-Queue: Joseph Park <josephjoopark@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1115267}