exynos: pinmux: remove unnecessary define

The value of PERIPH_ID_COUNT was wrong, and unnecessary.
Signed-off-by: NMinkyu Kang <mk7.kang@samsung.com>

arch/arm/cpu/armv7/exynos/clock.c

@@ -26,7 +26,7 @@ struct clk_bit_info {
 };
 
 /* src_bit div_bit prediv_bit */
-static struct clk_bit_info clk_bit_info[PERIPH_ID_COUNT] = {
+static struct clk_bit_info clk_bit_info[] = {
 	{0,	0,	-1},
 	{4,	4,	-1},
 	{8,	8,	-1},

arch/arm/include/asm/arch-exynos/periph.h

@@ -55,7 +55,6 @@ enum periph_id {
 	PERIPH_ID_PWM4,
 	PERIPH_ID_I2C10 = 203,
 
-	PERIPH_ID_COUNT,
 	PERIPH_ID_NONE = -1,
 };