PM: domains: Drop redundant header for genpd

The "power.h" is no longer needed by genpd, so let's simply drop the
include of it.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20231213113245.29075-1-ulf.hansson@linaro.org

Author: Ulf Hansson

drivers/base/power/domain.c

@@ -23,8 +23,6 @@
 #include <linux/cpu.h>
 #include <linux/debugfs.h>
 
-#include "power.h"
-
 #define GENPD_RETRY_MAX_MS	250		/* Approximate */
 
 #define GENPD_DEV_CALLBACK(genpd, type, callback, dev)		\