Similar to #26814.
Having a windows-only include of compat.h is confusing, not-only because it's already included globally via util/time.h, but also because it's unclear why compat.h is included (neither of the required headers are included there).
This change is related to removing the use of compat.h as a miscellaneous catch-all for unclear/platform specific includes. Somewhat prompted by IWYU-related discussion here: https://github.com/bitcoin/bitcoin/pull/26763/files#r1058861693.