move hash_any from hash to utils - Mailing list pgsql-hackers

I'm trying to cleanup header dependences and it seems hash_any and  hash_uint32 
function is candidate to move into separate c file in backend/utils/misc 
directory. It significantly reduce amount of unnecessary includes from files 
like  network.c ( http://doxygen.postgresql.org/network_8c.html)
Any comments?

    Zdenek