leds: Remove an orphan Kconfig entry

Remove an orphan Kconfig entry (LEDS_LP5521)
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

drivers/leds/Kconfig

@@ -146,16 +146,6 @@ config LEDS_GPIO_OF
 	  of_platform devices.  For instance, LEDs which are listed in a "dts"
 	  file.
 
-config LEDS_LP5521
-	tristate "LED Support for the LP5521 LEDs"
-	depends on LEDS_CLASS && I2C
-	help
-	  If you say 'Y' here you get support for the National Semiconductor
-	  LP5521 LED driver used in n8x0 boards.
-
-	  This driver can be built as a module by choosing 'M'. The module
-	  will be called leds-lp5521.
-
 config LEDS_CLEVO_MAIL
 	tristate "Mail LED on Clevo notebook"
 	depends on LEDS_CLASS && X86 && SERIO_I8042 && DMI