FROMLIST: Documentation: x86: Remove obsolete x86_max_dies description

cpuinfo_x86.x86_max_dies is introduced in commit 7745f03e
("x86/topology: Add CPUID.1F multi-die/package support") and then
removed in commit 14d96d6c
("x86/topology: Create topology_max_die_per_package()").

Remove the obsolete cpuinfo_x86.x86_max_dies description.

Fixes: 14d96d6c ("x86/topology: Create topology_max_die_per_package()")
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
(am from https://patchwork.kernel.org/patch/12944427/)
(also found at https://lore.kernel.org/r/20220816051633.17775-9-rui.zhang@intel.com

)

BUG=b:239519025
TEST=None

Signed-off-by: Srihari Uttanur <srihari.uttanur@intel.corp-partner.google.com>
Change-Id: Ic3278d07fbb67b5910fcdd595b6e762e5795f19f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/3832289


Commit-Queue: Victor Ding <victording@chromium.org>
Reviewed-by: Sam McNally <sammc@chromium.org>
Tested-by: Altaf Basha <altaf.basha@intel.com>
Reviewed-by: Sean Paul <sean@poorly.run>
Reviewed-by: Victor Ding <victording@chromium.org>
Commit-Queue: Sam McNally <sammc@chromium.org>