libcacard: remove default libcoolkey loading
libcacard: remove default libcoolkey loading

Use only the modules defined in the NSS database.

Signed-off-by: Marc-André Lureau <f20011f729ce65c6b731da6d94357379565098f1@redhat.com>
Reviewed-by: Alon Levy <816c907b754fa7b5d4bb5eb91e0fc01e5510e64d@redhat.com>

elmarco/libcacard,SPICE/libcacard,SPICE/libcacard,elmarco/libcacard