Build mono runtime under none desktop Windows API family, adjustments and cleanup.
Continuation work on previous none desktop Windows API family PR's adjusting all
changes to similar patterns used over previous PR's. This PR also move the logic
to silence a MS VS linker warning on empty source files into a macro. It also includes
the use of the macro in a couple of more source files causing linker warnings when build
on none desktop API families excluding JIT support.
Since other Windows API family work is still in progress it also disables build capabilities
for none desktop API families.