thermal/drivers/cpuidle_cooling: Delete unmatched comments

The function no longer returns a value, synchronize the comments.

Signed-off-by: wangchenggang@vivo.com
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/1681789108-28130-1-git-send-email-wangchenggang@vivo.com

drivers/thermal/cpuidle_cooling.c

@@ -236,9 +236,6 @@ out:
  *
  * This function is in charge of creating a cooling device per cpuidle
  * driver and register it to the thermal framework.
- *
- * Return: zero on success, or negative value corresponding to the
- * error detected in the underlying subsystems.
  */
 void cpuidle_cooling_register(struct cpuidle_driver *drv)
 {