nonstandard overloads in num_get facet

[martin@v.loewis.de (Martin v. Loewis)]

These additional overloads where added to libstdc++ in anticipation of
a resolution to defect report 118, see

http://anubis.dkuug.dk/jtc1/sc22/wg21/docs/lwg-defects.html#118

However, this defect report is resolved in a different way now (by
removing extractor functions, instead of adding get methods).  This
resolution has been incorporated in libstdc++, as locale_facet.h:1.29.

        * include/bits/locale_facets.h (_Numeric_get): Remove.
        (_Numeric_put): Remove.
        (num_get::get(short)): Remove.
        (num_get::get(int)): Remove.
        (num_get::do_get(short)): Remove.
        (num_get::do_get(int)): Remove.
        * include/bits/istream.tcc (istream::operator>>(short)): Fix as
        per DR 118.
        (istream::operator>>(int)): Same.

This was released as gcc 3.1, and is thus fixed in gcc 3.2.

Regards,
Martin