ARM: EXYNOS: Remove exynos_subsys registration

'exynos_subsys' has no users. Remove this code.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-exynos/exynos.c

@@ -308,17 +308,6 @@ void __init exynos_init_io(void)
 	exynos_map_io();
 }
 
-struct bus_type exynos_subsys = {
-	.name		= "exynos-core",
-	.dev_name	= "exynos-core",
-};
-
-static int __init exynos_core_init(void)
-{
-	return subsys_system_register(&exynos_subsys, NULL);
-}
-core_initcall(exynos_core_init);
-
 static int __init exynos4_l2x0_cache_init(void)
 {
 	int ret;

arch/arm/plat-samsung/include/plat/cpu.h

@@ -239,7 +239,6 @@ extern struct bus_type s3c2443_subsys;
 extern struct bus_type s3c6410_subsys;
 extern struct bus_type s5p64x0_subsys;
 extern struct bus_type s5pv210_subsys;
-extern struct bus_type exynos_subsys;
 
 extern void (*s5pc1xx_idle)(void);