backlight: Remove pxa tosa support

The PXA tosa machine was removed, so this backlight driver is no
longer needed.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230105134622.254560-10-arnd@kernel.org

drivers/video/backlight/Kconfig

@@ -90,13 +90,6 @@ config LCD_PLATFORM
 	  This driver provides a platform-device registered LCD power
 	  control interface.
 
-config LCD_TOSA
-	tristate "Sharp SL-6000 LCD Driver"
-	depends on I2C && SPI && MACH_TOSA
-	help
-	  If you have an Sharp SL-6000 Zaurus say Y to enable a driver
-	  for its LCD.
-
 config LCD_HP700
 	tristate "HP Jornada 700 series LCD Driver"
 	depends on SA1100_JORNADA720_SSP && !PREEMPTION
@@ -288,13 +281,6 @@ config BACKLIGHT_APPLE
 	  If you have an Intel-based Apple say Y to enable a driver for its
 	  backlight.
 
-config BACKLIGHT_TOSA
-	tristate "Sharp SL-6000 Backlight Driver"
-	depends on I2C && MACH_TOSA && LCD_TOSA
-	help
-	  If you have an Sharp SL-6000 Zaurus say Y to enable a driver
-	  for its backlight
-
 config BACKLIGHT_QCOM_WLED
 	tristate "Qualcomm PMIC WLED Driver"
 	select REGMAP

drivers/video/backlight/Makefile

@@ -15,7 +15,6 @@ obj-$(CONFIG_LCD_LTV350QV)		+= ltv350qv.o
 obj-$(CONFIG_LCD_OTM3225A)		+= otm3225a.o
 obj-$(CONFIG_LCD_PLATFORM)		+= platform_lcd.o
 obj-$(CONFIG_LCD_TDO24M)		+= tdo24m.o
-obj-$(CONFIG_LCD_TOSA)			+= tosa_lcd.o
 obj-$(CONFIG_LCD_VGG2432A4)		+= vgg2432a4.o
 
 obj-$(CONFIG_BACKLIGHT_88PM860X)	+= 88pm860x_bl.o
@@ -53,7 +52,6 @@ obj-$(CONFIG_BACKLIGHT_QCOM_WLED)	+= qcom-wled.o
 obj-$(CONFIG_BACKLIGHT_RT4831)		+= rt4831-backlight.o
 obj-$(CONFIG_BACKLIGHT_SAHARA)		+= kb3886_bl.o
 obj-$(CONFIG_BACKLIGHT_SKY81452)	+= sky81452-backlight.o
-obj-$(CONFIG_BACKLIGHT_TOSA)		+= tosa_bl.o
 obj-$(CONFIG_BACKLIGHT_TPS65217)	+= tps65217_bl.o
 obj-$(CONFIG_BACKLIGHT_WM831X)		+= wm831x_bl.o
 obj-$(CONFIG_BACKLIGHT_ARCXCNN) 	+= arcxcnn_bl.o