[5/5] msi/tests: Don't create a nested restore point on recent versions of MSI.

[testbot at testbot.winehq.org]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?
Full results can be found at
http://testbot.winehq.org/JobDetails.pl?Key=6155

Your paranoid android.


=== WXPPROSP3 (32 bit install) ===
Timeout

=== W2K3R2SESP2 (32 bit install) ===
Timeout