ARM: shmobile: r8a7779: Remove unused r8a7779_init_delay()

Remove the now unused r8a7779_init_delay() function.

Based on work for the r8a7740 SoC by Magnus Damm.

Cc: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/mach-shmobile/include/mach/r8a7779.h

@@ -10,7 +10,6 @@ enum {
 	HPBDMA_SLAVE_SDHI0_RX,
 };
 
-extern void r8a7779_init_delay(void);
 extern void r8a7779_init_irq_extpin(int irlm);
 extern void r8a7779_init_irq_extpin_dt(int irlm);
 extern void r8a7779_init_irq_dt(void);

arch/arm/mach-shmobile/setup-r8a7779.c

@@ -737,11 +737,6 @@ void __init r8a7779_init_irq_dt(void)
 	__raw_writel(0x003fee3f, INT2SMSKCR4);
 }
 
-void __init r8a7779_init_delay(void)
-{
-	shmobile_setup_delay(1000, 2, 4); /* Cortex-A9 @ 1000MHz */
-}
-
 void __init r8a7779_add_standard_devices_dt(void)
 {
 	platform_add_devices(r8a7779_devices_dt,