platform/x86: fujitsu-laptop: remove redundant forward declarations

Both acpi_fujitsu_bl_notify() and acpi_fujitsu_laptop_notify() are
defined before they are first used, so remove their forward declarations
as they are redundant.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
[kempniu: rebase patch, rewrite commit message]
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>

drivers/platform/x86/fujitsu-laptop.c

@@ -178,8 +178,6 @@ struct fujitsu_laptop {
 
 static struct fujitsu_laptop *fujitsu_laptop;
 
-static void acpi_fujitsu_laptop_notify(struct acpi_device *device, u32 event);
-
 #if IS_ENABLED(CONFIG_LEDS_CLASS)
 static enum led_brightness logolamp_get(struct led_classdev *cdev);
 static int logolamp_set(struct led_classdev *cdev,
@@ -227,8 +225,6 @@ static struct led_classdev eco_led = {
 static u32 dbg_level = 0x03;
 #endif
 
-static void acpi_fujitsu_bl_notify(struct acpi_device *device, u32 event);
-
 /* Fujitsu ACPI interface function */
 
 static int call_fext_func(int cmd, int arg0, int arg1, int arg2)