leds: Fix leds-class.c comment
leds: Fix leds-class.c comment

led_classdev_unregister() has no "__" prefix, remove it.

Signed-off-by: Qinghuang Feng <7767045c25ca33111b40cc1d3d8193a670f8cb89@gmail.com>
Signed-off-by: Richard Purdie <a03894c799ea916bd571ce8f12ed88f6fb3400f7@linux.intel.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas