mfd: arizona: Drop arizona-extcon cells

The arizona jack-dection handling is being reworked so that the
codec-child-device drivers directly handle jack-detect themselves,
so it is no longer necessary to instantiate "arizona-extcon"
child-devices.

Signed-off-by: Hans de Goede <[e-mail]>
Acked-by: Charles Keepax <[e-mail]>
Tested-by: Charles Keepax <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>

drivers/mfd/arizona-core.c

···
 static const struct mfd_cell wm5102_devs[] = {
 	{ .name = "arizona-micsupp" },
 	{ .name = "arizona-gpio" },
-	{
-		.name = "arizona-extcon",
-		.parent_supplies = wm5102_supplies,
-		.num_parent_supplies = 1, /* We only need MICVDD */
-	},
 	{ .name = "arizona-haptics" },
 	{ .name = "arizona-pwm" },
 	{
···
 static const struct mfd_cell wm5110_devs[] = {
 	{ .name = "arizona-micsupp" },
 	{ .name = "arizona-gpio" },
-	{
-		.name = "arizona-extcon",
-		.parent_supplies = wm5102_supplies,
-		.num_parent_supplies = 1, /* We only need MICVDD */
-	},
 	{ .name = "arizona-haptics" },
 	{ .name = "arizona-pwm" },
 	{
···
 static const struct mfd_cell wm8997_devs[] = {
 	{ .name = "arizona-micsupp" },
 	{ .name = "arizona-gpio" },
-	{
-		.name = "arizona-extcon",
-		.parent_supplies = wm8997_supplies,
-		.num_parent_supplies = 1, /* We only need MICVDD */
-	},
 	{ .name = "arizona-haptics" },
 	{ .name = "arizona-pwm" },
 	{
···
 static const struct mfd_cell wm8998_devs[] = {
 	{ .name = "arizona-micsupp" },
 	{ .name = "arizona-gpio" },
-	{
-		.name = "arizona-extcon",
-		.parent_supplies = wm5102_supplies,
-		.num_parent_supplies = 1, /* We only need MICVDD */
-	},
 	{ .name = "arizona-haptics" },
 	{ .name = "arizona-pwm" },
 	{