x86/platform/uv: Remove existing /sys/firmware/sgi_uv/ interface

Remove existing interface at /sys/firmware/sgi_uv/, created by
arch/x86/platform/uv/uv_sysfs.c

This interface includes:
/sys/firmware/sgi_uv/coherence_id
/sys/firmware/sgi_uv/partition_id

Both coherence_id and partition_id will be re-introduced via a
new uv_sysfs driver.
Signed-off-by: Justin Ernst <justin.ernst@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lkml.kernel.org/r/20201125175444.279074-2-justin.ernst@hpe.com

arch/x86/platform/uv/Makefile

 # SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_X86_UV)		+= bios_uv.o uv_irq.o uv_sysfs.o uv_time.o uv_nmi.o
+obj-$(CONFIG_X86_UV)		+= bios_uv.o uv_irq.o uv_time.o uv_nmi.o

arch/x86/platform/uv/uv_sysfs.c

-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * This file supports the /sys/firmware/sgi_uv interfaces for SGI UV.
- *
- *  Copyright (c) 2008 Silicon Graphics, Inc.  All Rights Reserved.
- *  Copyright (c) Russ Anderson
- */
-
-#include <linux/device.h>
-#include <asm/uv/bios.h>
-#include <asm/uv/uv.h>
-
-struct kobject *sgi_uv_kobj;
-
-static ssize_t partition_id_show(struct kobject *kobj,
-			struct kobj_attribute *attr, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%ld\n", sn_partition_id);
-}
-
-static ssize_t coherence_id_show(struct kobject *kobj,
-			struct kobj_attribute *attr, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%ld\n", sn_coherency_id);
-}
-
-static struct kobj_attribute partition_id_attr =
-	__ATTR(partition_id, S_IRUGO, partition_id_show, NULL);
-
-static struct kobj_attribute coherence_id_attr =
-	__ATTR(coherence_id, S_IRUGO, coherence_id_show, NULL);
-
-
-static int __init sgi_uv_sysfs_init(void)
-{
-	unsigned long ret;
-
-	if (!is_uv_system())
-		return -ENODEV;
-
-	if (!sgi_uv_kobj)
-		sgi_uv_kobj = kobject_create_and_add("sgi_uv", firmware_kobj);
-	if (!sgi_uv_kobj) {
-		printk(KERN_WARNING "kobject_create_and_add sgi_uv failed\n");
-		return -EINVAL;
-	}
-
-	ret = sysfs_create_file(sgi_uv_kobj, &partition_id_attr.attr);
-	if (ret) {
-		printk(KERN_WARNING "sysfs_create_file partition_id failed\n");
-		return ret;
-	}
-
-	ret = sysfs_create_file(sgi_uv_kobj, &coherence_id_attr.attr);
-	if (ret) {
-		printk(KERN_WARNING "sysfs_create_file coherence_id failed\n");
-		return ret;
-	}
-
-	return 0;
-}
-
-device_initcall(sgi_uv_sysfs_init);