[PATCH] AArch64: Remove EMAG ifuncs

[Florian Weimer]

* Wilco Dijkstra:

> Remove the old EMAG ifuncs for memset and memchr.  Also remove old
> entries from cpu_list[].
>
> Passes regress, OK for commit?

What's the reason for removal?  We still use these machines for
development purposes, I think.

Thanks,
Florian