ddraw/tests: Simplify the 'NT4 testbot' special case a bit.

[Marvin]

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
https://newtestbot.winehq.org/JobDetails.pl?Key=5209

Your paranoid android.


=== w2000pro (32 bit ddraw2) ===
ddraw2: unhandled exception c0000005 at 004267A5

=== w8 (32 bit ddraw2) ===
Timeout

=== w8 (32 bit ddraw1) ===
ddraw1.c:4113: Test failed: Got unexpected refcount 3.
ddraw1.c:4132: Test failed: Got unexpected refcount 3.
ddraw1.c:4139: Test failed: Got unexpected hr 0.
ddraw1.c:4142: Test failed: Got unexpected refcount 3.
ddraw1.c:4144: Test failed: Got unexpected refcount 2.
ddraw1.c:4150: Test failed: Got unexpected hr 0.
ddraw1.c:4153: Test failed: Got unexpected refcount 2.
ddraw1.c:4155: Test failed: Got unexpected refcount 1.