Revert "microblaze: Add topology init"

This reverts commit d761f0c5.

Patch: "cpu: Register a generic CPU device on architectures that currently do not"
(sha1: 9f13a1fd)

selects GENERIC_CPU_DEVICES for Microblaze which register cpu.
My patch was done in the same time that's why cpu was registered twice which
caused this warning log:

------------[ cut here ]------------
WARNING: at fs/sysfs/dir.c:481 sysfs_add_one+0xb0/0xdc()
sysfs: cannot create duplicate filename '/devices/system/cpu/cpu0'
Modules linked in:
...
Signed-off-by: NMichal Simek <monstr@monstr.eu>

arch/microblaze/kernel/setup.c

@@ -26,7 +26,6 @@
 #include <linux/cache.h>
 #include <linux/of_platform.h>
 #include <linux/dma-mapping.h>
-#include <linux/cpu.h>
 #include <asm/cacheflush.h>
 #include <asm/entry.h>
 #include <asm/cpuinfo.h>
@@ -227,23 +226,5 @@ static int __init setup_bus_notifier(void)
 
 	return 0;
 }
-arch_initcall(setup_bus_notifier);
-
-static DEFINE_PER_CPU(struct cpu, cpu_devices);
-
-static int __init topology_init(void)
-{
-	int i, ret;
-
-	for_each_present_cpu(i) {
-		struct cpu *c = &per_cpu(cpu_devices, i);
 
-		ret = register_cpu(c, i);
-		if (ret)
-			printk(KERN_WARNING "topology_init: register_cpu %d "
-						"failed (%d)\n", i, ret);
-	}
-
-	return 0;
-}
-subsys_initcall(topology_init);
+arch_initcall(setup_bus_notifier);