secur32/tests: Don't load crypt32.dll function dynamically.

[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://testbot.winehq.org/JobDetails.pl?Key=23615

Your paranoid android.


=== w1064 (32 bit schannel) ===
schannel.c:837: Test failed: Got unexpected status 0x80090308.
schannel.c:845: Test failed: Got unexpected status 0x80090308.

=== w1064 (64 bit schannel) ===
schannel.c:837: Test failed: Got unexpected status 0x80090308.
schannel.c:845: Test failed: Got unexpected status 0x80090308.