ARM: SAMSUNG: Remove legacy watchdog reset code

Since all platforms have been moved to the new watchdog reset driver,
the legacy code can be removed safely.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Tested-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/plat-samsung/include/plat/watchdog-reset.h

@@ -13,41 +13,6 @@
 #ifndef __PLAT_SAMSUNG_WATCHDOG_RESET_H
 #define __PLAT_SAMSUNG_WATCHDOG_RESET_H
 
-#include <plat/clock.h>
-#include <plat/regs-watchdog.h>
-#include <mach/map.h>
-
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/delay.h>
-
-static inline void arch_wdt_reset(void)
-{
-	printk("arch_reset: attempting watchdog reset\n");
-
-	__raw_writel(0, S3C2410_WTCON);	  /* disable watchdog, to be safe  */
-
-	if (!IS_ERR(s3c2410_wdtclk))
-		clk_enable(s3c2410_wdtclk);
-
-	/* put initial values into count and data */
-	__raw_writel(0x80, S3C2410_WTCNT);
-	__raw_writel(0x80, S3C2410_WTDAT);
-
-	/* set the watchdog to go and reset... */
-	__raw_writel(S3C2410_WTCON_ENABLE|S3C2410_WTCON_DIV16|S3C2410_WTCON_RSTEN |
-		     S3C2410_WTCON_PRESCALE(0x20), S3C2410_WTCON);
-
-	/* wait for reset to assert... */
-	mdelay(500);
-
-	printk(KERN_ERR "Watchdog reset failed to assert reset\n");
-
-	/* delay to allow the serial port to show the message */
-	mdelay(50);
-}
-
 extern void samsung_wdt_reset(void);
 extern void samsung_wdt_reset_of_init(void);
 extern void samsung_wdt_reset_init(void __iomem *base);