leds: remove config option LEDS_GPIO_PLATFORM from Kconfig

Since the commit a314c5c0040aab51ebb1ecfd37a9198a91962243
(leds/leds-gpio: merge platform_driver with of_platform_driver),
the config option LEDS_GPIO_PLATFORM becomes useless, so remove it.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
[grant.likely: also remove LEDS_GPIO_OF for same reason]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 23f0d5e..9d7d940 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -93,7 +93,7 @@
 config LEDS_NET5501
 	tristate "LED Support for Soekris net5501 series Error LED"
 	depends on LEDS_TRIGGERS
-	depends on X86 && LEDS_GPIO_PLATFORM && GPIO_CS5535
+	depends on X86 && GPIO_CS5535
 	select LEDS_TRIGGER_DEFAULT_ON
 	default n
 	help
@@ -183,23 +183,6 @@
 	  defined as platform devices and/or OpenFirmware platform devices.
 	  The code to use these bindings can be selected below.
 
-config LEDS_GPIO_PLATFORM
-	bool "Platform device bindings for GPIO LEDs"
-	depends on LEDS_GPIO
-	default y
-	help
-	  Let the leds-gpio driver drive LEDs which have been defined as
-	  platform devices.  If you don't know what this means, say yes.
-
-config LEDS_GPIO_OF
-	bool "OpenFirmware platform device bindings for GPIO LEDs"
-	depends on LEDS_GPIO && OF_DEVICE
-	default y
-	help
-	  Let the leds-gpio driver drive LEDs which have been defined as
-	  of_platform devices.  For instance, LEDs which are listed in a "dts"
-	  file.
-
 config LEDS_LP3944
 	tristate "LED Support for N.S. LP3944 (Fun Light) I2C chip"
 	depends on LEDS_CLASS