glibc-2.1.97 fixes from USAGI Project

[Ulrich Drepper]

Hideaki YOSHIFUJI ($B5HF#1QL@(B) <yoshfuji@ecei.tohoku.ac.jp> writes:

> It is not broken even it is based on old standard.

It is broken.  Not even the current IPv6 specification is acknowledged
as standard.  There is no reason to keep previous development version
alive.  The kernel people also don't do it.

> Anyway, this removes it.

Thanks.

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