arm: remove cpu_init

move s3c44b0 to arch_cpu_init and as noone use cpu_init remove it

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

cpu/arm_cortexa8/cpu.c

@@ -42,11 +42,6 @@ void l2cache_disable(void);
 
 static void cache_flush(void);
 
-int cpu_init(void)
-{
-	return 0;
-}
-
 int cleanup_before_linux(void)
 {
 	unsigned int i;