staging: iio light Kconfig fixlet

No point to start comments with '\'.

Signed-off-by: maximilian attems <max@stro.at>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/iio/light/Kconfig

@@ -1,4 +1,4 @@
-\#
+#
 # Light sensors
 #
 comment "Light sensors"