[PATCH] x86: purge most *avx512*ig*-intel tests

[Jiang, Haochen]

> From: Jan Beulich <jbeulich@suse.com>
> Sent: Thursday, November 21, 2024 7:44 PM
> 
> Having just one each (AVX512F) ought to be sufficient to cover Intel syntax
> disassembly.
> 
> In x86-64.exp also reorder tests some, so that related ones are again next to
> each other, rather than being interspersed with APX ones.

Ok to me.

Thx,
Haochen