regulator: 88pm800: remove duplicate PM800_BUCK3 define

The PM800_BUCK3 define is cut and pasted twice so we can remove the
second instance.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

drivers/regulator/88pm800.c

@@ -52,7 +52,6 @@
 #define PM800_BUCK1_3		(0x3F)
 #define PM800_BUCK2		(0x40)
 #define PM800_BUCK3		(0x41)
-#define PM800_BUCK3		(0x41)
 #define PM800_BUCK4		(0x42)
 #define PM800_BUCK4_1		(0x43)
 #define PM800_BUCK4_2		(0x44)