include/gpio.h: remove remaining __must_check-annotiations

Commit 5f829e405ec4e96f711165a4a7b55c271d4363e2 (gpiolib: add missing functions
to generic fallback) also introduced two.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Greg KH <gregkh@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/gpio.h

@@ -35,13 +35,13 @@ static inline int gpio_request(unsigned gpio, const char *label)
 	return -ENOSYS;
 }
 
-static inline int __must_check gpio_request_one(unsigned gpio,
+static inline int gpio_request_one(unsigned gpio,
 					unsigned long flags, const char *label)
 {
 	return -ENOSYS;
 }
 
-static inline int __must_check gpio_request_array(struct gpio *array, size_t num)
+static inline int gpio_request_array(struct gpio *array, size_t num)
 {
 	return -ENOSYS;
 }