Fix gnutls build failure due to missing libintl.la, and remove gettext.recipe
gnutls is missing a dependency on proxy-libintl.
Also, remove the last remaining reference to gettext and remove the recipe. Everything uses proxy-libintl now.
gnutls is missing a dependency on proxy-libintl.
Also, remove the last remaining reference to gettext and remove the recipe. Everything uses proxy-libintl now.