12.4.7 `acconfig.h' at top level

Earlier GNU gettext releases required to put definitions for ENABLE_NLS, HAVE_GETTEXT and HAVE_LC_MESSAGES, HAVE_STPCPY, PACKAGE and VERSION into an `acconfig.h' file. This is not needed any more; you can remove them from your `acconfig.h' file unless your package uses them independently from the `intl/' directory.