kernel32/tests: Remove a useless trace.

[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
http://testbot.winehq.org/JobDetails.pl?Key=26897

Your paranoid android.


=== WVISTAX64 (64 bit comm) ===
comm.c:835: Test failed: WriteFile took 16 ms to write 0 Bytes at 150 Baud
comm.c:1445: test_AbortWaitCts timeout 500 handle 000000000000003C
comm.c:1412:  Changing CommMask on the fly for handle 000000000000003C after timeout 500