remove some unnecessary code:
- win32
- other comapt code
- uuid daemon code
- TLS code
- unused functions and features

import a small portion of util-linux's "libuuid". this is needed for
the new fontconfig which uses these APIs internally. we'll rename
the symbols and they aren't exported by fontconfig.so anyway.

this is necessary because libuuid's API conflicts with netbsd libc
uuid API while being not really simple to shim or provide compat for.