Back out patch that got bundled into another patch.

src/backend/libpq/ip.c

src/backend/utils/mb/encnames.c

src/include/c.h

src/include/getaddrinfo.h

src/include/pg_config.h.win32

src/include/port.h

src/interfaces/libpq/bcc32.mak

src/interfaces/libpq/blibpqdll.def

src/interfaces/libpq/fe-connect.c

src/interfaces/libpq/fe-misc.c

src/interfaces/libpq/libpqdll.def

src/interfaces/libpq/win32.mak

src/port/crypt.c

src/port/getaddrinfo.c

src/port/inet_aton.c