Decoding already handles signed and unsigned CRLs, so don't duplicate
that in CertCreateCRLContext.

Decoding already handles signed and unsigned certs, so don't duplicate
that in CertCreateCertificateContext.

Remove the unused server_sem variable.

This way it still works if the libdir we got was libs/wine instead of libs.

I initially misread the specification.  src0.x is the iteration count,
not the max amount for the loop register.  This fixes that.