configure: remove freeaddrinfo test
configure: remove freeaddrinfo test

Assume that freeaddrinfo() is missing if and only if targetting OS/2.
That is not particularly clean but <vlc_network.h> already makes that
same assumption anyhow.

krichter722/vlc,vlc-mirror/vlc,shyamalschandra/vlc,vlc-mirror/vlc,krichter722/vlc,shyamalschandra/vlc,vlc-mirror/vlc,vlc-mirror/vlc,vlc-mirror/vlc,xkfz007/vlc,shyamalschandra/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,krichter722/vlc,shyamalschandra/vlc,xkfz007/vlc,shyamalschandra/vlc,vlc-mirror/vlc,shyamalschandra/vlc,krichter722/vlc,vlc-mirror/vlc,xkfz007/vlc,krichter722/vlc,krichter722/vlc,shyamalschandra/vlc,krichter722/vlc,xkfz007/vlc