HID: nintendo: Remove some unused functions

These functions are defined in the hid-nintendo.c file, but not called
elsewhere, so delete these unused functions.

drivers/hid/hid-nintendo.c:670:20: warning: unused function 'joycon_device_is_left_joycon'.
drivers/hid/hid-nintendo.c:674:20: warning: unused function 'joycon_device_is_right_joycon'

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7992
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Silvan Jegen <s.jegen@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>

Author: wb-zjp846396

drivers/hid/hid-nintendo.c

@@ -667,16 +667,6 @@ struct joycon_ctlr {
  * These helpers are most useful early during the HID probe or in conjunction
  * with the capability helpers below.
  */
-static inline bool joycon_device_is_left_joycon(struct joycon_ctlr *ctlr)
-{
-	return ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONL;
-}
-
-static inline bool joycon_device_is_right_joycon(struct joycon_ctlr *ctlr)
-{
-	return ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONR;
-}
-
 static inline bool joycon_device_is_procon(struct joycon_ctlr *ctlr)
 {
 	return ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_PROCON;