ARM: uniphier: remove unused argument of ph1_ld4_ddrphy_init()

The DDR PHY settings no longer depend on the DRAM size.  Drop the
argument from the init function.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/dram/ddrphy-ph1-ld4.c b/arch/arm/mach-uniphier/dram/ddrphy-ph1-ld4.c
index 27be1cc..ef1941e 100644
--- a/arch/arm/mach-uniphier/dram/ddrphy-ph1-ld4.c
+++ b/arch/arm/mach-uniphier/dram/ddrphy-ph1-ld4.c
@@ -9,8 +9,7 @@
 
 #include "ddrphy-regs.h"
 
-int ph1_ld4_ddrphy_init(struct ddrphy __iomem *phy, int freq, int size,
-			bool ddr3plus)
+int ph1_ld4_ddrphy_init(struct ddrphy __iomem *phy, int freq, bool ddr3plus)
 {
 	u32 tmp;