regulator: ab8500: remove some defined but not used variables

Fix the following gcc warning:

drivers/regulator/ab8500.c:195:27: warning: ‘ldo_vdmic_voltages’ defined
but not used [-Wunused-const-variable=]
 static const unsigned int ldo_vdmic_voltages[] = {
                           ^~~~~~~~~~~~~~~~~~
drivers/regulator/ab8500.c:169:27: warning: ‘fixed_3300000_voltage’
defined but not used [-Wunused-const-variable=]
 static const unsigned int fixed_3300000_voltage[] = {
                           ^~~~~~~~~~~~~~~~~~~~~
drivers/regulator/ab8500.c:142:27: warning: ‘ldo_sdio_voltages’ defined
but not used [-Wunused-const-variable=]
 static const unsigned int ldo_sdio_voltages[] = {
                           ^~~~~~~~~~~~~~~~~
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200410073343.39031-1-yanaijie@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/ab8500.c

@@ -139,17 +139,6 @@ static const unsigned int ldo_vintcore_voltages[] = {
 	1350000,
 };
 
-static const unsigned int ldo_sdio_voltages[] = {
-	1160000,
-	1050000,
-	1100000,
-	1500000,
-	1800000,
-	2200000,
-	2910000,
-	3050000,
-};
-
 static const unsigned int fixed_1200000_voltage[] = {
 	1200000,
 };
@@ -166,10 +155,6 @@ static const unsigned int fixed_2050000_voltage[] = {
 	2050000,
 };
 
-static const unsigned int fixed_3300000_voltage[] = {
-	3300000,
-};
-
 static const unsigned int ldo_vana_voltages[] = {
 	1050000,
 	1075000,
@@ -192,13 +177,6 @@ static const unsigned int ldo_vaudio_voltages[] = {
 	2600000,	/* Duplicated in Vaudio and IsoUicc Control register. */
 };
 
-static const unsigned int ldo_vdmic_voltages[] = {
-	1800000,
-	1900000,
-	2000000,
-	2850000,
-};
-
 static DEFINE_MUTEX(shared_mode_mutex);
 static struct ab8500_shared_mode ldo_anamic1_shared;
 static struct ab8500_shared_mode ldo_anamic2_shared;