[Gardener] Disable RemovesAllBrowserPromptsOnSettingsChange on Windows

Disable RemovesAllBrowserPromptsOnSettingsChange test as it is flaky on
Windows.

Bug: 335553725
Change-Id: I909652e31cbf8477638d5376b1c549c462254856
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5463604


Owners-Override: Andy Phan <andyphan@chromium.org>
Reviewed-by: Nina Satragno <nsatragno@chromium.org>
Commit-Queue: Andy Phan <andyphan@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1289442}