EDAC: Remove the legacy EDAC sysfs interface

EDAC: Remove the legacy EDAC sysfs interface

Commit

  199747106934 ("edac: add a new per-dimm API and make the old per-virtual-rank API obsolete")

introduced a new per-DIMM sysfs interface for EDAC making the old
per-virtual-rank sysfs interface obsolete.

Since this new sysfs interface was introduced more than a decade ago, remove
the obsolete legacy interface.

Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20251106015727.1987246-1-avadhut.naik@amd.com