staging: greybus: light.c: Remove include linux/version.h

Fixes:
$ make versioncheck | grep staging
./drivers/staging/greybus/light.c: 15 linux/version.h not needed.

Signed-off-by: Darryl T. Agostinelli <dagostinelli@gmail.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/greybus/light.c

@@ -12,7 +12,6 @@
 #include <linux/led-class-flash.h>
 #include <linux/module.h>
 #include <linux/slab.h>
-#include <linux/version.h>
 #include <media/v4l2-flash-led-class.h>
 
 #include "greybus.h"