leds: mlxreg: Drop an excess struct mlxreg_led_data member

Drop one struct member description to fix a kernel-doc warning:

drivers/leds/leds-mlxreg.c:42: warning: Excess struct member 'led_data' description in 'mlxreg_led_data'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20240229071931.7870-4-rdunlap@infradead.orgSigned-off-by: Lee Jones <lee@kernel.org>

drivers/leds/leds-mlxreg.c

@@ -29,7 +29,6 @@
  * @data: led configuration data;
  * @led_cdev: led class data;
  * @base_color: base led color (other colors have constant offset from base);
- * @led_data: led data;
  * @data_parent: pointer to private device control data of parent;
  * @led_cdev_name: class device name
  */