platform/x86: wmi: Drop forward declaration of static functions

Usually it's not necessary to declare static functions if the symbols are
in the right order. Moving the definition of acpi_wmi_driver down in the
compilation unit allows to drop two such declarations.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220919122213.852322-1-u.kleine-koenig@pengutronix.deReviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/wmi.c

@@ -95,9 +95,6 @@ module_param(debug_dump_wdg, bool, 0444);
 MODULE_PARM_DESC(debug_dump_wdg,
 		 "Dump available WMI interfaces [0/1]");
 
-static int acpi_wmi_remove(struct platform_device *device);
-static int acpi_wmi_probe(struct platform_device *device);
-
 static const struct acpi_device_id wmi_device_ids[] = {
 	{"PNP0C14", 0},
 	{"pnp0c14", 0},
@@ -111,15 +108,6 @@ static const char * const allow_duplicates[] = {
 	NULL
 };
 
-static struct platform_driver acpi_wmi_driver = {
-	.driver = {
-		.name = "acpi-wmi",
-		.acpi_match_table = wmi_device_ids,
-	},
-	.probe = acpi_wmi_probe,
-	.remove = acpi_wmi_remove,
-};
-
 /*
  * GUID parsing functions
  */
@@ -1480,6 +1468,15 @@ void wmi_driver_unregister(struct wmi_driver *driver)
 }
 EXPORT_SYMBOL(wmi_driver_unregister);
 
+static struct platform_driver acpi_wmi_driver = {
+	.driver = {
+		.name = "acpi-wmi",
+		.acpi_match_table = wmi_device_ids,
+	},
+	.probe = acpi_wmi_probe,
+	.remove = acpi_wmi_remove,
+};
+
 static int __init acpi_wmi_init(void)
 {
 	int error;