...similar to 28b4f4ae "Get rid of Windows .def
files in setup_native, use __declspec(dllexport)".  And JNIEXPORT (with which
the listed functions are decorated in odk/source/unowinreg/win/unowinreg.cxx)
already implies __declspec(dllexport).

Change-Id: I45fd1d50cd3b072d124002e469c70eb1d6ed7610
Reviewed-on: https://gerrit.libreoffice.org/60819
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>