[PATCH v2 0/2] MR821: Fix integer overflow bug in RtlUniform which has been fixed in Windows since Vista

[Jinoh Kang (＠iamahuman)]

This MR accomplishes two things:

1. It removes unused obsolete tests for Windows XP or earlier.
2. It synchronizes RtlUniform so that it matches that of Windows Vista or later.

--
  v2: ntdll: Fix integer overflow in RtlUniform.

https://gitlab.winehq.org/wine/wine/-/merge_requests/821