platform/x86: panasonic-laptop: remove unused code

The struct pcc_keyinput is not used in panasonic-laptop and in
anywhere in kernel, and it can be removed.
Signed-off-by: Alex Hung <alex.hung@canonical.com>
Acked-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

drivers/platform/x86/panasonic-laptop.c

@@ -228,10 +228,6 @@ struct pcc_acpi {
 	struct backlight_device	*backlight;
 };
 
-struct pcc_keyinput {
-	struct acpi_hotkey      *hotkey;
-};
-
 /* method access functions */
 static int acpi_pcc_write_sset(struct pcc_acpi *pcc, int func, int val)
 {