ARM: at91: remove obsoleted init_consistent_dma_size()

Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Acked-by: NJean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
CC: Nicolas Ferre <nicolas.ferre@atmel.com>
CC: Andrew Victor <linux@maxim.org.za>

arch/arm/mach-at91/at91sam9g45.c

@@ -343,7 +343,6 @@ static struct at91_gpio_bank at91sam9g45_gpio[] __initdata = {
 static void __init at91sam9g45_map_io(void)
 {
 	at91_init_sram(0, AT91SAM9G45_SRAM_BASE, AT91SAM9G45_SRAM_SIZE);
-	init_consistent_dma_size(SZ_4M);
 }
 
 static void __init at91sam9g45_ioremap_registers(void)