ui/spice-input: Remove superfluous forward declaration

We only need to forward-declare kbd_push_key() and kbd_get_leds()
which are used in kbd_interface, not kbd_leds(). Remove this
superfluous forward declaration.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200909171145.350360-1-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

ui/spice-input.c

@@ -36,7 +36,6 @@ typedef struct QemuSpiceKbd {
 
 static void kbd_push_key(SpiceKbdInstance *sin, uint8_t frag);
 static uint8_t kbd_get_leds(SpiceKbdInstance *sin);
-static void kbd_leds(void *opaque, int l);
 
 static const SpiceKbdInterface kbd_interface = {
     .base.type          = SPICE_INTERFACE_KEYBOARD,